// Spry.Effect.js - version 0.38 - Spry Pre-Release 1.6.1
//
// Copyright (c) 2006. Adobe Systems Incorporated.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
//   * Redistributions of source code must retain the above copyright notice,
//     this list of conditions and the following disclaimer.
//   * Redistributions in binary form must reproduce the above copyright notice,
//     this list of conditions and the following disclaimer in the documentation
//     and/or other materials provided with the distribution.
//   * Neither the name of Adobe Systems Incorporated nor the names of its
//     contributors may be used to endorse or promote products derived from this
//     software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.

var Spry;

if (!Spry) Spry = {};

Spry.forwards = 1; // const
Spry.backwards = 2; // const

if (!Spry.Effect) Spry.Effect = {};

Spry.Effect.Transitions = {
    linearTransition: function(time, begin, change, duration)
    {
        if (time > duration) return change+begin;
        return begin + (time / duration) * change;
    },
    sinusoidalTransition: function(time, begin, change, duration)
    {
        if (time > duration) return change+begin;
        return begin + ((-Math.cos((time/duration)*Math.PI)/2) + 0.5) * change;
    },
    squareTransition: function(time, begin, change, duration)
    {
        if (time > duration) return change+begin;
        return begin + Math.pow(time/duration, 2) * change;
    },
    squarerootTransition: function(time, begin, change, duration)
    {
        if (time > duration) return change+begin;
        return begin + Math.sqrt(time/duration) * change;
    },
    fifthTransition: function(time, begin, change, duration)
    {
        if (time > duration) return change+begin;
        return begin + Math.sqrt((-Math.cos((time/duration)*Math.PI)/2) + 0.5) * change;
    },
    circleTransition: function(time, begin, change, duration)
    {
        if (time > duration) return change+begin;
        var pos = time/duration;
        return begin + Math.sqrt(1 - Math.pow((pos-1), 2))* change;
    },
    pulsateTransition: function(time, begin, change, duration)
    {
        if (time > duration) return change+begin;
        return begin + (0.5 + Math.sin(17*time/duration)/2) * change;
    },
    growSpecificTransition: function(time, begin, change, duration)
    {
        if (time > duration) return change+begin;
        var pos = time/duration;
        return begin + (5 * Math.pow(pos, 3) - 6.4 * Math.pow(pos, 2) + 2 * pos) * change;
    }
};
for (var trans in Spry.Effect.Transitions)
{
    Spry[trans] = Spry.Effect.Transitions[trans];
}
//////////////////////////////////////////////////////////////////////
//
// Spry.Effect.Registry
//
//////////////////////////////////////////////////////////////////////

Spry.Effect.Registry = function()
{
    this.effects = [];
};

Spry.Effect.Registry.prototype.getRegisteredEffect = function(element, options) 
{
    var a = {};
    a.element = Spry.Effect.getElement(element);
    a.options = options;

    for (var i=0; i<this.effects.length; i++)
        if (this.effectsAreTheSame(this.effects[i], a))
            return this.effects[i].effect;

    return false;
};

Spry.Effect.Registry.prototype.addEffect = function(effect, element, options)
{
    if (!this.getRegisteredEffect(element, options))
    {
        var len = this.effects.length;
        this.effects[len] = {};
        var eff = this.effects[len];
        eff.effect = effect;
        eff.element = Spry.Effect.getElement(element);
        eff.options = options;
    }
};

Spry.Effect.Registry.prototype.effectsAreTheSame = function(effectA, effectB)
{
    if (effectA.element != effectB.element)
        return false;

    var compare = Spry.Effect.Utils.optionsAreIdentical(effectA.options, effectB.options);
    // reset finish and setup functions
    if (compare)
    {
        if (typeof effectB.options.setup == 'function')
            effectA.options.setup = effectB.options.setup;

        if (typeof effectB.options.finish == 'function')
            effectA.options.finish = effectB.options.finish;
    }       

    return compare;
};

var SpryRegistry = new Spry.Effect.Registry;

//////////////////////////////////////////////////////////////////////
//
// Spry.Effect.Utils
//
//////////////////////////////////////////////////////////////////////

if (!Spry.Effect.Utils) Spry.Effect.Utils = {};

Spry.Effect.Utils.showError = function(msg)
{
    alert('Spry.Effect ERR: ' + msg);
};
Spry.Effect.Utils.showInitError = function(effect){
    Spry.Effect.Utils.showError('The ' + effect + ' class can\'t be accessed as a static function anymore. '+ "\n" + 'Please read Spry Effects migration documentation.');
    return false;
};
Spry.Effect.Utils.Position = function()
{
    this.x = 0; // left
    this.y = 0; // top
    this.units = "px";
};

Spry.Effect.Utils.Rectangle = function()
{
    this.width = 0;
    this.height = 0;
    this.units = "px";
};

Spry.Effect.Utils.intToHex = function(integerNum) 
{
    var result = integerNum.toString(16);
    if (result.length == 1)
        result = "0" + result;
    return result;
};

Spry.Effect.Utils.hexToInt = function(hexStr)
{
    return parseInt(hexStr, 16);
};

Spry.Effect.Utils.rgb = function(redInt, greenInt, blueInt)
{
    var intToHex = Spry.Effect.Utils.intToHex;
    var redHex = intToHex(redInt);
    var greenHex = intToHex(greenInt);
    var blueHex = intToHex(blueInt);
    compositeColorHex = redHex.concat(greenHex, blueHex).toUpperCase();
    compositeColorHex = '#' + compositeColorHex;
    return compositeColorHex;
};

Spry.Effect.Utils.longColorVersion = function(color){
    if ( color.match(/^#[0-9a-f]{3}$/i) ){
        var tmp = color.split('');
        var color = '#';
        for (var i = 1; i < tmp.length; i++){
            color += tmp[i] + '' + tmp[i];  
        }
    }
    return color;
};

Spry.Effect.Utils.camelize = function(stringToCamelize)
{
    if (stringToCamelize.indexOf('-') == -1){
        return stringToCamelize;    
    }
    var oStringList = stringToCamelize.split('-');
    var isFirstEntry = true;
    var camelizedString = '';

    for(var i=0; i < oStringList.length; i++)
    {
        if(oStringList[i].length>0)
        {
            if(isFirstEntry)
            {
                camelizedString = oStringList[i];
                isFirstEntry = false;
            }
            else
            {
                var s = oStringList[i];
                camelizedString += s.charAt(0).toUpperCase() + s.substring(1);
            }
        }
    }

    return camelizedString;
};

Spry.Effect.Utils.isPercentValue = function(value)
{
    var result = false;
    if (typeof value == 'string' && value.length > 0 && value.lastIndexOf("%") > 0)
        result = true;

    return result;
};

Spry.Effect.Utils.getPercentValue = function(value)
{
    var result = 0;
    try
    {
        result = Number(value.substring(0, value.lastIndexOf("%")));
    }
    catch (e) {Spry.Effect.Utils.showError('Spry.Effect.Utils.getPercentValue: ' + e);}
    return result;
};

Spry.Effect.Utils.getPixelValue = function(value)
{
    var result = 0;
    if (typeof value == 'number') return value;
    var unitIndex = value.lastIndexOf("px");
    if ( unitIndex == -1)
        unitIndex = value.length;
    try
    {
        result = parseInt(value.substring(0, unitIndex), 10);
    }
    catch (e){}
    return result;
};

Spry.Effect.Utils.getFirstChildElement = function(node)
{
    if (node)
    {
        var childCurr = node.firstChild;
        while (childCurr)
        {
            if (childCurr.nodeType == 1) // Node.ELEMENT_NODE
                return childCurr;

            childCurr = childCurr.nextSibling;
        }
    }

    return null;
};

Spry.Effect.Utils.fetchChildImages = function(startEltIn, targetImagesOut)
{
    if(!startEltIn  || startEltIn.nodeType != 1 || !targetImagesOut)
        return;

    if(startEltIn.hasChildNodes())
    {
        var childImages = startEltIn.getElementsByTagName('img');
        var imageCnt = childImages.length;
        for(var i=0; i<imageCnt; i++)
        {
            var imgCurr = childImages[i];
            var dimensionsCurr = Spry.Effect.getDimensions(imgCurr);
            targetImagesOut.push([imgCurr,dimensionsCurr.width,dimensionsCurr.height]);
        }
    }
};

Spry.Effect.Utils.optionsAreIdentical = function(optionsA, optionsB)
{
    if(optionsA == null && optionsB == null)
        return true;

    if(optionsA != null && optionsB != null)
    {
        var objectCountA = 0;
        var objectCountB = 0;

        for (var propA in optionsA) objectCountA++;
        for (var propB in optionsB) objectCountB++;

        if(objectCountA != objectCountB)
            return false;

        for (var prop in optionsA)
        {
            var typeA = typeof optionsA[prop];
            var typeB = typeof optionsB[prop];
            if ( typeA != typeB || (typeA != 'undefined' && optionsA[prop] != optionsB[prop]))
                return false;
        }

        return true;
    }

    return false;
};

Spry.Effect.Utils.DoEffect = function (effectName, element, options)
{
    if (!options)
        var options = {};

    options.name = effectName;
    var ef = SpryRegistry.getRegisteredEffect(element, options);
    if (!ef)
    {
        ef = new Spry.Effect[effectName](element, options);
        SpryRegistry.addEffect(ef, element, options);
    }
    ef.start();
    return true;
};
//////////////////////////////////////////////////////////////////////
//
//  The notification class
//
//////////////////////////////////////////////////////////////////////
if (!Spry.Utils) Spry.Utils = {};

Spry.Utils.Notifier = function()
{
    this.observers = [];
    this.suppressNotifications = 0;
};

Spry.Utils.Notifier.prototype.addObserver = function(observer)
{
    if (!observer)
        return;

    // Make sure the observer isn't already on the list.

    var len = this.observers.length;
    for (var i = 0; i < len; i++)
        if (this.observers[i] == observer) return;

    this.observers[len] = observer;
};

Spry.Utils.Notifier.prototype.removeObserver = function(observer)
{
    if (!observer)
        return;

    for (var i = 0; i < this.observers.length; i++)
    {
        if (this.observers[i] == observer)
        {
            this.observers.splice(i, 1);
            break;
        }
    }
};

Spry.Utils.Notifier.prototype.notifyObservers = function(methodName, data)
{
    if (!methodName)
        return;

    if (!this.suppressNotifications)
    {
        var len = this.observers.length;
        for (var i = 0; i < len; i++)
        {
            var obs = this.observers[i];
            if (obs)
            {
                if (typeof obs == "function")
                    obs(methodName, this, data);
                else if (obs[methodName])
                    obs[methodName](this, data);
            }
        }
    }
};

Spry.Utils.Notifier.prototype.enableNotifications = function()
{
    if (--this.suppressNotifications < 0)
    {
        this.suppressNotifications = 0;
        Spry.Effect.Utils.showError("Unbalanced enableNotifications() call!\n");
    }
};

Spry.Utils.Notifier.prototype.disableNotifications = function()
{
    ++this.suppressNotifications;
};

//////////////////////////////////////////////////////////////////////
//
// DHTML manipulation
//
//////////////////////////////////////////////////////////////////////

Spry.Effect.getElement = function(ele)
{
    var element = ele;
    if (typeof ele == "string")
        element = document.getElementById(ele);

    if (element == null) 
        Spry.Effect.Utils.showError('Element "' + ele + '" not found.');
    
    return element;
};

Spry.Effect.getStyleProp = function(element, prop)
{
    var value;
    var camelized = Spry.Effect.Utils.camelize(prop);
    try
    {
        if (element.style)
            value = element.style[camelized];

        if (!value)
        {
            if (document.defaultView && document.defaultView.getComputedStyle)
            {
                var css = document.defaultView.getComputedStyle(element, null);
                value = css ? css.getPropertyValue(prop) : null;
            }
            else if (element.currentStyle) 
            {
                    value = element.currentStyle[camelized];
            }
        }
    }
    catch (e) {Spry.Effect.Utils.showError('Spry.Effect.getStyleProp: ' + e);}

    return value == 'auto' ? null : value;
};

Spry.Effect.setStyleProp = function(element, prop, value)
{
    try
    {
        element.style[Spry.Effect.Utils.camelize(prop)] = value;
    }
    catch (e) {Spry.Effect.Utils.showError('Spry.Effect.setStyleProp: ' + e);}
};

Spry.Effect.getStylePropRegardlessOfDisplayState = function(element, prop, displayElement)
{
    var refElement = displayElement ? displayElement : element;
    var displayOrig = Spry.Effect.getStyleProp(refElement, 'display');
    var visibilityOrig = Spry.Effect.getStyleProp(refElement, 'visibility');

    if(displayOrig == 'none')
    {
        Spry.Effect.setStyleProp(refElement, 'visibility', 'hidden');
        Spry.Effect.setStyleProp(refElement, 'display', 'block');

        if(window.opera) // opera needs focus to calculate the size for hidden elements
            refElement.focus();
    }

    var styleProp = Spry.Effect.getStyleProp(element, prop);

    if(displayOrig == 'none') // reset the original values
    {
        Spry.Effect.setStyleProp(refElement, 'display', 'none');
        Spry.Effect.setStyleProp(refElement, 'visibility', visibilityOrig);
    }
    return styleProp;
};

Spry.Effect.makePositioned = function(element)
{
    var pos = Spry.Effect.getStyleProp(element, 'position');
    if (!pos || pos == 'static')
    {
        element.style.position = 'relative';

        // Opera returns the offset relative to the positioning context, when an
        // element is position relative but top and left have not been defined
        if (window.opera)
        {
            element.style.top = 0;
            element.style.left = 0;
        }
    }
};

Spry.Effect.isInvisible = function(element)
{
    var propDisplay = Spry.Effect.getStyleProp(element, 'display');
    if (propDisplay && propDisplay.toLowerCase() == 'none')
        return true;

    var propVisible = Spry.Effect.getStyleProp(element, 'visibility');
    if (propVisible && propVisible.toLowerCase() == 'hidden')
        return true;

    return false;
};

Spry.Effect.enforceVisible = function(element)
{
    var propDisplay = Spry.Effect.getStyleProp(element, 'display');
    if (propDisplay && propDisplay.toLowerCase() == 'none')
        Spry.Effect.setStyleProp(element, 'display', 'block');

    var propVisible = Spry.Effect.getStyleProp(element, 'visibility');
    if (propVisible && propVisible.toLowerCase() == 'hidden')
        Spry.Effect.setStyleProp(element, 'visibility', 'visible');
};

Spry.Effect.makeClipping = function(element)
{
    var overflow = Spry.Effect.getStyleProp(element, 'overflow');
    if (!overflow || (overflow.toLowerCase() != 'hidden' && overflow.toLowerCase() != 'scroll'))
    {
        // IE 7 bug: set overflow property to hidden changes the element height to 0
        // -> therefore we save the height before changing the overflow property and set the old size back
        var heightCache = 0;
        var needsCache = /MSIE 7.0/.test(navigator.userAgent) && /Windows NT/.test(navigator.userAgent);
        if(needsCache)
            heightCache = Spry.Effect.getDimensionsRegardlessOfDisplayState(element).height;

        Spry.Effect.setStyleProp(element, 'overflow', 'hidden');

        if(needsCache)
            Spry.Effect.setStyleProp(element, 'height', heightCache+'px');
    }
};

Spry.Effect.cleanWhitespace = function(element) 
{
    var childCountInit = element.childNodes.length;
  for (var i = childCountInit - 1; i >= 0; i--) {
    var node = element.childNodes[i];
        if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
            try
            {
                element.removeChild(node);
            }
            catch (e) {Spry.Effect.Utils.showError('Spry.Effect.cleanWhitespace: ' + e);}
    }
};

Spry.Effect.getComputedStyle = function(element)
{
    return /MSIE/.test(navigator.userAgent) ? element.currentStyle : document.defaultView.getComputedStyle(element, null);
};

Spry.Effect.getDimensions = function(element)
{
    var dimensions = new Spry.Effect.Utils.Rectangle;
    var computedStyle = null;

    if (element.style.width && /px/i.test(element.style.width))
        dimensions.width = parseInt(element.style.width, 10); // without padding
    else
    {
        computedStyle = Spry.Effect.getComputedStyle(element);
        var tryComputedStyle = computedStyle && computedStyle.width && /px/i.test(computedStyle.width);

        if (tryComputedStyle)
            dimensions.width = parseInt(computedStyle.width, 10); // without padding, includes css

        if (!tryComputedStyle || dimensions.width == 0) // otherwise we might run into problems on safari and opera (mac only)
            dimensions.width = element.offsetWidth;   // includes padding
    }

    if (element.style.height && /px/i.test(element.style.height))
        dimensions.height = parseInt(element.style.height, 10); // without padding
    else
    {
        if (!computedStyle)
            computedStyle = Spry.Effect.getComputedStyle(element);

        var tryComputedStyle = computedStyle && computedStyle.height && /px/i.test(computedStyle.height);

        if (tryComputedStyle)
            dimensions.height = parseInt(computedStyle.height, 10); // without padding, includes css

        if(!tryComputedStyle || dimensions.height == 0) // otherwise we might run into problems on safari and opera (mac only)
            dimensions.height = element.offsetHeight;   // includes padding
    }
    return dimensions;
};

Spry.Effect.getDimensionsRegardlessOfDisplayState = function(element, displayElement)
{
    // If the displayElement display property is set to 'none', we temporarily set its
    // visibility state to 'hidden' to be able to calculate the dimension.

    var refElement = displayElement ? displayElement : element;
    var displayOrig = Spry.Effect.getStyleProp(refElement, 'display');
    var visibilityOrig = Spry.Effect.getStyleProp(refElement, 'visibility');

    if(displayOrig == 'none')
    {
        Spry.Effect.setStyleProp(refElement, 'visibility', 'hidden');
        Spry.Effect.setStyleProp(refElement, 'display', 'block');

        if(window.opera) // opera needs focus to calculate the size for hidden elements
            refElement.focus();
    }

    var dimensions = Spry.Effect.getDimensions(element);

    if(displayOrig == 'none') // reset the original values
    {
        Spry.Effect.setStyleProp(refElement, 'display', 'none');
        Spry.Effect.setStyleProp(refElement, 'visibility', visibilityOrig);
    }
    return dimensions;
};

Spry.Effect.getOpacity = function(element)
{
  var o = Spry.Effect.getStyleProp(element, "opacity");
  if (typeof o == 'undefined' || o == null)
    o = 1.0;
  return o;
};

Spry.Effect.getBgColor = function(ele)
{
  return Spry.Effect.getStyleProp(ele, "background-color");
};

Spry.Effect.intPropStyle = function(e, prop){
        var i = parseInt(Spry.Effect.getStyleProp(e, prop), 10);
        if (isNaN(i))
            return 0;
        return i;
};

Spry.Effect.getPosition = function(element)
{
    var position = new Spry.Effect.Utils.Position;
    var computedStyle = null;

    if (element.style.left  && /px/i.test(element.style.left))
        position.x = parseInt(element.style.left, 10); // without padding
    else
    {
        computedStyle = Spry.Effect.getComputedStyle(element);
        var tryComputedStyle = computedStyle && computedStyle.left && /px/i.test(computedStyle.left);

        if (tryComputedStyle)
            position.x = parseInt(computedStyle.left, 10); // without padding, includes css

        if(!tryComputedStyle || position.x == 0) // otherwise we might run into problems on safari and opera (mac only)
            position.x = element.offsetLeft;   // includes padding
    }

    if (element.style.top && /px/i.test(element.style.top))
        position.y = parseInt(element.style.top, 10); // without padding
    else
    {
        if (!computedStyle)
            computedStyle = Spry.Effect.getComputedStyle(element);

    var tryComputedStyle = computedStyle && computedStyle.top && /px/i.test(computedStyle.top);

        if (tryComputedStyle)
            position.y = parseInt(computedStyle.top, 10); // without padding, includes css

        if(!tryComputedStyle || position.y == 0) // otherwise we might run into problems on safari and opera (mac only)
            position.y = element.offsetTop;   // includes padding
    }
    return position;
};

Spry.Effect.getOffsetPosition = Spry.Effect.getPosition; // deprecated

//////////////////////////////////////////////////////////////////////
//
// Spry.Effect.Animator
// (base class)
//
//////////////////////////////////////////////////////////////////////

Spry.Effect.Animator = function(options)
{
    Spry.Utils.Notifier.call(this);
    
    this.name = 'Animator';
    this.element = null;
    this.startMilliseconds = 0;
    this.repeat = 'none';
    this.isRunning = false;
    this.timer = null;
    this.cancelRemaining = 0;

    if (!options)
        var options = {};

    if (options.toggle)
        this.direction = false;
    else
        this.direction = Spry.forwards;
    
    var self = this;
    if (options.setup != null)
        this.addObserver({onPreEffect: function(){try{self.options.setup(self.element, self);}catch(e){Spry.Effect.Utils.showError('Spry.Effect.Animator.prototype.start: setup callback: ' + e);}}});

    if (options.finish != null)
        this.addObserver({onPostEffect: function(){try{self.options.finish(self.element, self);}catch(e){Spry.Effect.Utils.showError('Spry.Effect.Animator.prototype.stop: finish callback: ' + e);}}});

    this.options = {
        duration: 1000,
        toggle: false,
        transition: Spry.linearTransition,
        interval: 16 // ca. 62 fps
    };

    this.setOptions(options);
    if (options.transition)
        this.setTransition(options.transition);

    if (options.fps)
        this.setFps(options.fps);
};
Spry.Effect.Animator.prototype = new Spry.Utils.Notifier();
Spry.Effect.Animator.prototype.constructor = Spry.Utils.Animator;

Spry.Effect.Animator.prototype.notStaticAnimator = true;

Spry.Effect.Animator.prototype.setOptions = function(options)
{
    if (!options)
        return;
    for (var prop in options)
        this.options[prop] = options[prop];
};
Spry.Effect.Animator.prototype.setTransition = function(transition){
    if (typeof transition == 'number' || transition == "1" || transition == "2")
        switch (parseInt(transition,10))
        {
            case 1: transition = Spry.linearTransition; break;
            case 2: transition = Spry.sinusoidalTransition; break;
            default: Spry.Effect.Utils.showError('unknown transition');
        }

    else if (typeof transition == 'string')
    {
        if (typeof window[transition] == 'function')
            transition = window[transition];
        else if (typeof Spry[transition] == 'function')
            transition = Spry[transition];
        else
            Spry.Effect.Utils.showError('unknown transition');
    }

    this.options.transition = transition;
    if (typeof this.effectsArray != 'undefined'){
        var l = this.effectsArray.length;
        for (var i = 0; i < l; i++)
                this.effectsArray[i].effect.setTransition(transition);
    }
};

Spry.Effect.Animator.prototype.setDuration = function(duration){
    this.options.duration = duration;
    if (typeof this.effectsArray != 'undefined')
    {
        var l = this.effectsArray.length;
        for (var i = 0; i < l; i++)
        {
            this.effectsArray[i].effect.setDuration(duration);
        }
    }
};

Spry.Effect.Animator.prototype.setFps = function(fps){
    this.options.interval = parseInt(1000 / fps, 10);
    this.options.fps = fps;
    if (typeof this.effectsArray != 'undefined')
    {
        var l = this.effectsArray.length;
        for (var i = 0; i < l; i++)
        {
            this.effectsArray[i].effect.setFps(fps);
        }
    }
};

Spry.Effect.Animator.prototype.start = function(withoutTimer)
{
    if (!this.element)
        return;

    if (arguments.length == 0)
        withoutTimer = false;

    if (this.isRunning)
        this.cancel();

    this.prepareStart();
    var currDate = new Date();
    this.startMilliseconds = currDate.getTime();

    if (this.element.id)
        this.element = document.getElementById(this.element.id);

    if (this.cancelRemaining != 0 && this.options.toggle)
    {
        if (this.cancelRemaining < 1 && typeof this.options.transition == 'function')
        {
            var startTime = 0;
            var stopTime = this.options.duration;
            var start = 0;
            var stop = 1;
            var emergency = 0;
            this.cancelRemaining = Math.round(this.cancelRemaining * 1000) / 1000;
            var found = false;
            var middle = 0;
            while (!found)
            {
                if (emergency++ > this.options.duration) break;
                var half = startTime + ((stopTime - startTime) / 2);
                middle = Math.round(this.options.transition(half, 1, -1, this.options.duration) * 1000) / 1000;
                if (middle == this.cancelRemaining)
                {
                    this.startMilliseconds -= half;
                    found = true;
                }
                if (middle < this.cancelRemaining)
                {
                    stopTime = half;
                    stop = middle;
                }
                else
                {
                    startTime = half;
                    start = middle;
                }
            }
        }
        this.cancelRemaining = 0;
    }
    this.notifyObservers('onPreEffect', this);

    if (withoutTimer == false)
    {
        var self = this;
        this.timer = setInterval(function() { self.drawEffect(); }, this.options.interval);
    }
    this.isRunning = true;
};
Spry.Effect.Animator.prototype.stopFlagReset = function()
{
    if (this.timer)
    {
        clearInterval(this.timer);
        this.timer = null;
    }
    this.startMilliseconds = 0;
};
Spry.Effect.Animator.prototype.stop = function()
{
    this.stopFlagReset();
    this.notifyObservers('onPostEffect', this);
    this.isRunning = false;
};

Spry.Effect.Animator.prototype.cancel = function()
{
    var elapsed = this.getElapsedMilliseconds();
    if (this.startMilliseconds > 0 && elapsed < this.options.duration)
        this.cancelRemaining = this.options.transition(elapsed, 0, 1, this.options.duration);

    this.stopFlagReset();
    this.notifyObservers('onCancel', this);
    this.isRunning = false;
};

Spry.Effect.Animator.prototype.drawEffect = function()
{
    var isRunning = true;

    this.notifyObservers('onStep', this);
    var timeElapsed = this.getElapsedMilliseconds();

    if (typeof this.options.transition != 'function'){
        Spry.Effect.Utils.showError('unknown transition');
        return;
    }
    this.animate();

    if (timeElapsed > this.options.duration)
    {
        isRunning = false;
        this.stop();
    }
    return isRunning;
};

Spry.Effect.Animator.prototype.getElapsedMilliseconds = function()
{
    if (this.startMilliseconds > 0)
    {
        var currDate = new Date();
        return (currDate.getTime() - this.startMilliseconds);
    }
    return 0;
};

Spry.Effect.Animator.prototype.doToggle = function()
{
    if (!this.direction)
    {
        this.direction = Spry.forwards;
        return;
    }
    if (this.options.toggle == true)
    {
        if (this.direction == Spry.forwards)
        {
            this.direction = Spry.backwards;
            this.notifyObservers('onToggle', this);
        } 
        else if (this.direction == Spry.backwards)
        {
            this.direction = Spry.forwards;
        }
    }
};

Spry.Effect.Animator.prototype.prepareStart = function()
{
        if (this.options && this.options.toggle)
            this.doToggle();
};

Spry.Effect.Animator.prototype.animate = function(){};
Spry.Effect.Animator.prototype.onStep = function(el)
{
    if (el != this)
        this.notifyObservers('onStep', this);
};
//////////////////////////////////////////////////////////////////////
//
// Spry.Effect.Move
//
//////////////////////////////////////////////////////////////////////

Spry.Effect.Move = function(element, fromPos, toPos, options)
{
    this.dynamicFromPos = false;
    if (arguments.length == 3)
    {
        options = toPos;
        toPos = fromPos;
        fromPos = Spry.Effect.getPosition(element);
        this.dynamicFromPos = true;
    }

    Spry.Effect.Animator.call(this, options);

    this.name = 'Move';
    this.element = Spry.Effect.getElement(element);
    if (!this.element)
        return;

    if (fromPos.units != toPos.units)
        Spry.Effect.Utils.showError('Spry.Effect.Move: Conflicting units (' + fromPos.units + ', ' + toPos.units + ')');

    this.units = fromPos.units;
    this.startX = Number(fromPos.x);
    this.stopX = Number(toPos.x);
    this.startY = Number(fromPos.y);
    this.stopY = Number(toPos.y);
};

Spry.Effect.Move.prototype = new Spry.Effect.Animator();
Spry.Effect.Move.prototype.constructor = Spry.Effect.Move;

Spry.Effect.Move.prototype.animate = function()
{
    var left = 0;
    var top = 0;
    var floor = Math.floor;
    var elapsed = this.getElapsedMilliseconds();
    if (this.direction == Spry.forwards)
    {
        left = floor(this.options.transition(elapsed, this.startX, this.stopX - this.startX, this.options.duration));
        top = floor(this.options.transition(elapsed, this.startY, this.stopY - this.startY, this.options.duration));
    }
    else if (this.direction == Spry.backwards)
    {
        left = floor(this.options.transition(elapsed, this.stopX, this.startX - this.stopX, this.options.duration));
        top = floor(this.options.transition(elapsed, this.stopY, this.startY - this.stopY, this.options.duration));
    }

    this.element.style.left = left + this.units;
    this.element.style.top = top + this.units;
};

Spry.Effect.Move.prototype.prepareStart = function()
{
    if (this.options && this.options.toggle)
        this.doToggle();

    if (this.dynamicFromPos == true)
    {
        var fromPos = Spry.Effect.getPosition(this.element);
        this.startX = fromPos.x;
        this.startY = fromPos.y;
        
        this.rangeMoveX = this.startX - this.stopX;
        this.rangeMoveY= this.startY - this.stopY;
    }
};

//////////////////////////////////////////////////////////////////////
//
// Spry.Effect.Size
//
//////////////////////////////////////////////////////////////////////

Spry.Effect.Size = function(element, fromRect, toRect, options)
{
    this.dynamicFromRect = false;

    if (arguments.length == 3)
    {
        options = toRect;
        toRect = fromRect;
        fromRect = Spry.Effect.getDimensionsRegardlessOfDisplayState(element);
        this.dynamicFromRect = true;
    }

    Spry.Effect.Animator.call(this, options);

    this.name = 'Size';
    this.element = Spry.Effect.getElement(element);
    if (!this.element)
        return;

    element = this.element;

    if (fromRect.units != toRect.units)
    {
        Spry.Effect.Utils.showError('Spry.Effect.Size: Conflicting units (' + fromRect.units + ', ' + toRect.units + ')');
        return false;
    }

    this.units = fromRect.units;

    var originalRect = Spry.Effect.getDimensionsRegardlessOfDisplayState(element);
    this.originalWidth = originalRect.width;
    this.originalHeight = originalRect.height;

    this.startWidth = fromRect.width;
    this.startHeight = fromRect.height;
    this.stopWidth = toRect.width;
    this.stopHeight = toRect.height;
    this.childImages = new Array();

    if (this.options.useCSSBox){
        Spry.Effect.makePositioned(this.element);
        var intProp = Spry.Effect.intPropStyle;
        this.startFromBorder_top = intProp(element, 'border-top-width');
        this.startFromBorder_bottom = intProp(element, 'border-bottom-width');
        this.startFromBorder_left = intProp(element, 'border-left-width');
        this.startFromBorder_right = intProp(element, 'border-right-width');
        this.startFromPadding_top = intProp(element, 'padding-top');
        this.startFromPadding_bottom = intProp(element, 'padding-bottom');
        this.startFromPadding_left = intProp(element, 'padding-left');
        this.startFromPadding_right = intProp(element, 'padding-right');
        this.startFromMargin_top = intProp(element, 'margin-top');
        this.startFromMargin_bottom = intProp(element, 'margin-bottom');
        this.startFromMargin_right = intProp(element, 'margin-right');
        this.startFromMargin_left = intProp(element, 'margin-left');
        this.startLeft = intProp(element, 'left');
        this.startTop = intProp(element, 'top');
    }

    if(this.options.scaleContent)
        Spry.Effect.Utils.fetchChildImages(element, this.childImages);

    this.fontFactor = 1.0;
    var fontSize = Spry.Effect.getStyleProp(this.element, 'font-size');
    if(fontSize && /em\s*$/.test(fontSize))
        this.fontFactor = parseFloat(fontSize);

    var isPercent = Spry.Effect.Utils.isPercentValue;

    if (isPercent(this.startWidth))
    {
        var startWidthPercent = Spry.Effect.Utils.getPercentValue(this.startWidth);
        this.startWidth = originalRect.width * (startWidthPercent / 100);
    }

    if (isPercent(this.startHeight))
    {
        var startHeightPercent = Spry.Effect.Utils.getPercentValue(this.startHeight);
        this.startHeight = originalRect.height * (startHeightPercent / 100);
    }

    if (isPercent(this.stopWidth))
    {
        var stopWidthPercent = Spry.Effect.Utils.getPercentValue(this.stopWidth);
        this.stopWidth = originalRect.width * (stopWidthPercent / 100);
    }

    if (isPercent(this.stopHeight))
    {
        var stopHeightPercent = Spry.Effect.Utils.getPercentValue(this.stopHeight);
        this.stopHeight = originalRect.height * (stopHeightPercent / 100);
    }

    this.enforceVisible = Spry.Effect.isInvisible(this.element);
};

Spry.Effect.Size.prototype = new Spry.Effect.Animator();
Spry.Effect.Size.prototype.constructor = Spry.Effect.Size;

Spry.Effect.Size.prototype.animate = function()
{
    var width = 0;
    var height = 0;
    var fontSize = 0;
    var direction = 0;
    var floor = Math.floor;
    var elapsed = this.getElapsedMilliseconds();

    if (this.direction == Spry.forwards) {
        width = floor(this.options.transition(elapsed, this.startWidth, this.stopWidth - this.startWidth, this.options.duration));
        height = floor(this.options.transition(elapsed, this.startHeight, this.stopHeight - this.startHeight, this.options.duration));
        direction = 1;
    } else if (this.direction == Spry.backwards) {
        width = floor(this.options.transition(elapsed, this.stopWidth, this.startWidth - this.stopWidth, this.options.duration));
        height = floor(this.options.transition(elapsed, this.stopHeight, this.startHeight - this.stopHeight, this.options.duration));
        direction = -1;
    }

    var propFactor = width/this.originalWidth;
    fontSize = this.fontFactor * propFactor;

    var elStyle = this.element.style;
    if (width < 0)
        width = 0;
    
    if (height < 0)
        height = 0;

    elStyle.width = width + this.units;
    elStyle.height = height + this.units;

    if (typeof this.options.useCSSBox != 'undefined' && this.options.useCSSBox == true)
    {
        var intProp = Spry.Effect.intPropStyle;
        var origTop = intProp(this.element, 'top');
        var origLeft = intProp(this.element, 'left');
        var origMarginTop = intProp(this.element, 'margin-top');
        var origMarginLeft = intProp(this.element, 'margin-left');

        var widthFactor = propFactor;
        var heightFactor = height / this.originalHeight;
        var border_top = floor(this.startFromBorder_top * heightFactor);
        var border_bottom = floor(this.startFromBorder_bottom * heightFactor);
        var border_left = floor(this.startFromBorder_left * widthFactor);
        var border_right = floor(this.startFromBorder_right * widthFactor);
        var padding_top = floor(this.startFromPadding_top * heightFactor);
        var padding_bottom = floor(this.startFromPadding_bottom * heightFactor);
        var padding_left = floor(this.startFromPadding_left * widthFactor);
        var padding_right = floor(this.startFromPadding_right * widthFactor);
        var margin_top = floor(this.startFromMargin_top * heightFactor);
        var margin_bottom = floor(this.startFromMargin_bottom * heightFactor);
        var margin_right = floor(this.startFromMargin_right * widthFactor);
        var margin_left = floor(this.startFromMargin_left * widthFactor);

        elStyle.borderTopWidth = border_top + this.units;
        elStyle.borderBottomWidth = border_bottom + this.units;
        elStyle.borderLeftWidth = border_left + this.units;
        elStyle.borderRightWidth = border_right + this.units;
        elStyle.paddingTop = padding_top + this.units;
        elStyle.paddingBottom = padding_bottom + this.units;
        elStyle.paddingLeft = padding_left + this.units;
        elStyle.paddingRight = padding_right + this.units;
        elStyle.marginTop  = margin_top + this.units;
        elStyle.marginBottom = margin_bottom + this.units;
        elStyle.marginLeft = margin_left + this.units;
        elStyle.marginRight = margin_right + this.units;

        // compensate the margin shrinking
        elStyle.left = floor(origLeft + origMarginLeft - margin_left) + this.units;
        elStyle.top = floor(origTop + origMarginTop - margin_top) + this.units;
    }

    if (this.options.scaleContent)
    {

        for(var i=0; i < this.childImages.length; i++)
        {
            this.childImages[i][0].style.width = propFactor * this.childImages[i][1] + this.units;
            this.childImages[i][0].style.height = propFactor * this.childImages[i][2] + this.units;
        }
        this.element.style.fontSize = fontSize + 'em';
    }

    if(this.enforceVisible)
    {
        Spry.Effect.enforceVisible(this.element);
        this.enforceVisible = false;
    }
};

Spry.Effect.Size.prototype.prepareStart = function()
{
    if (this.options && this.options.toggle)
        this.doToggle();    

    if (this.dynamicFromRect == true)
    {
        var fromRect = Spry.Effect.getDimensions(this.element);
        this.startWidth = fromRect.width;
        this.startHeight = fromRect.height;

        this.widthRange = this.startWidth - this.stopWidth;
        this.heightRange = this.startHeight - this.stopHeight;
    }
};

//////////////////////////////////////////////////////////////////////
//
// Spry.Effect.Opacity
//
//////////////////////////////////////////////////////////////////////

Spry.Effect.Opacity = function(element, startOpacity, stopOpacity, options)
{
    this.dynamicStartOpacity = false;
    if (arguments.length == 3)
    {
        options = stopOpacity;
        stopOpacity = startOpacity;
        startOpacity = Spry.Effect.getOpacity(element);
        this.dynamicStartOpacity = true;
    }

    Spry.Effect.Animator.call(this, options);

    this.name = 'Opacity';
    this.element = Spry.Effect.getElement(element);
    if (!this.element)
        return;

    // make this work on IE on elements without 'layout'
    if(/MSIE/.test(navigator.userAgent) && (!this.element.hasLayout))
        Spry.Effect.setStyleProp(this.element, 'zoom', '1');

    this.startOpacity = startOpacity;
    this.stopOpacity = stopOpacity;
    this.enforceVisible = Spry.Effect.isInvisible(this.element);
};

Spry.Effect.Opacity.prototype = new Spry.Effect.Animator();
Spry.Effect.Opacity.prototype.constructor = Spry.Effect.Opacity;

Spry.Effect.Opacity.prototype.animate = function()
{
    var opacity = 0;
    var elapsed = this.getElapsedMilliseconds();
    if (this.direction == Spry.forwards) 
        opacity = this.options.transition(elapsed, this.startOpacity, this.stopOpacity - this.startOpacity, this.options.duration);
    else if (this.direction == Spry.backwards) 
        opacity = this.options.transition(elapsed, this.stopOpacity, this.startOpacity - this.stopOpacity, this.options.duration);

    if (opacity < 0)
        opacity = 0;

    if(/MSIE/.test(navigator.userAgent))
    {
        var tmpval = Spry.Effect.getStyleProp(this.element,'filter');
        if (tmpval){
            tmpval = tmpval.replace(/alpha\(opacity=[0-9]{1,3}\)/g, '');
        }
        this.element.style.filter = tmpval + "alpha(opacity=" + Math.floor(opacity * 100) + ")";
    }
    else
        this.element.style.opacity = opacity;

    if(this.enforceVisible)
    {
        Spry.Effect.enforceVisible(this.element);
        this.enforceVisible = false;
    }
};

Spry.Effect.Opacity.prototype.prepareStart = function()
{
    if (this.options && this.options.toggle)
        this.doToggle();    

    if (this.dynamicStartOpacity == true)
    {
        this.startOpacity = Spry.Effect.getOpacity(this.element);
        this.opacityRange = this.startOpacity - this.stopOpacity;
    }
};

//////////////////////////////////////////////////////////////////////
//
// Spry.Effect.Color
//
//////////////////////////////////////////////////////////////////////

Spry.Effect.Color = function(element, startColor, stopColor, options)
{
    this.dynamicStartColor = false;
    if (arguments.length == 3)
    {
        options = stopColor;
        stopColor = startColor;
        startColor = Spry.Effect.getBgColor(element);
        this.dynamicStartColor = true;
    }
    
    Spry.Effect.Animator.call(this, options);

    this.name = 'Color';
    this.element = Spry.Effect.getElement(element);
    if (!this.element)
        return;

    this.startColor = startColor;
    this.stopColor = stopColor;
    this.startRedColor = Spry.Effect.Utils.hexToInt(startColor.substr(1,2));
    this.startGreenColor = Spry.Effect.Utils.hexToInt(startColor.substr(3,2));
    this.startBlueColor = Spry.Effect.Utils.hexToInt(startColor.substr(5,2));
    this.stopRedColor = Spry.Effect.Utils.hexToInt(stopColor.substr(1,2));
    this.stopGreenColor = Spry.Effect.Utils.hexToInt(stopColor.substr(3,2));
    this.stopBlueColor = Spry.Effect.Utils.hexToInt(stopColor.substr(5,2));
};

Spry.Effect.Color.prototype = new Spry.Effect.Animator();
Spry.Effect.Color.prototype.constructor = Spry.Effect.Color;

Spry.Effect.Color.prototype.animate = function()
{
    var redColor = 0;
    var greenColor = 0;
    var blueColor = 0;
    var floor = Math.floor;
    var elapsed = this.getElapsedMilliseconds();

    if (this.direction == Spry.forwards)
    {
        redColor = floor(this.options.transition(elapsed, this.startRedColor, this.stopRedColor - this.startRedColor, this.options.duration));
        greenColor = floor(this.options.transition(elapsed, this.startGreenColor, this.stopGreenColor - this.startGreenColor, this.options.duration));
        blueColor = floor(this.options.transition(elapsed, this.startBlueColor, this.stopBlueColor - this.startBlueColor, this.options.duration));
    }
    else if (this.direction == Spry.backwards)
    {
        redColor = floor(this.options.transition(elapsed, this.stopRedColor, this.startRedColor - this.stopRedColor, this.options.duration));
        greenColor = floor(this.options.transition(elapsed, this.stopGreenColor, this.startGreenColor - this.stopGreenColor, this.options.duration));
        blueColor = floor(this.options.transition(elapsed, this.stopBlueColor, this.startBlueColor - this.stopBlueColor, this.options.duration));
    }

    this.element.style.backgroundColor = Spry.Effect.Utils.rgb(redColor, greenColor, blueColor);
};

Spry.Effect.Color.prototype.prepareStart = function() 
{
    if (this.options && this.options.toggle)
        this.doToggle();

    if (this.dynamicStartColor == true)
    {
        this.startColor = Spry.Effect.getBgColor(element);
        this.startRedColor = Spry.Effect.Utils.hexToInt(startColor.substr(1,2));
        this.startGreenColor = Spry.Effect.Utils.hexToInt(startColor.substr(3,2));
        this.startBlueColor = Spry.Effect.Utils.hexToInt(startColor.substr(5,2));
        this.redColorRange = this.startRedColor - this.stopRedColor;
        this.greenColorRange = this.startGreenColor - this.stopGreenColor;
        this.blueColorRange = this.startBlueColor - this.stopBlueColor;
    }
};

//////////////////////////////////////////////////////////////////////
//
// Spry.Effect.Cluster
//
//////////////////////////////////////////////////////////////////////

Spry.Effect.Cluster = function(options)
{
    Spry.Effect.Animator.call(this, options);

    this.name = 'Cluster';
    this.effectsArray = new Array();
    this.currIdx = -1;
    var _ClusteredEffect = function(effect, kind)
    {
        this.effect = effect;
        this.kind = kind; // "parallel" or "queue"
        this.isRunning = false;
    };

    this.ClusteredEffect = _ClusteredEffect;
};

Spry.Effect.Cluster.prototype = new Spry.Effect.Animator();
Spry.Effect.Cluster.prototype.constructor = Spry.Effect.Cluster;

Spry.Effect.Cluster.prototype.setInterval = function(interval){
    var l = this.effectsArray.length;
    this.options.interval = interval;
    for (var i = 0; i < l; i++)
    {
        this.effectsArray[i].effect.setInterval(interval);
    }
};
Spry.Effect.Cluster.prototype.drawEffect = function()
{
    var isRunning = true;
    var allEffectsDidRun = false;
    var baseEffectIsStillRunning = false;
    var evalNextEffectsRunning = false;

    if ((this.currIdx == -1 && this.direction == Spry.forwards) || (this.currIdx == this.effectsArray.length && this.direction == Spry.backwards))
        this.initNextEffectsRunning();

    var start = this.direction == Spry.forwards ? 0 : this.effectsArray.length-1;
    var stop = this.direction == Spry.forwards ? this.effectsArray.length : -1;
    var step = this.direction == Spry.forwards ? 1 : -1;
    for (var i = start; i != stop; i+=step)
    {
        if (this.effectsArray[i].isRunning == true)
        {
            baseEffectIsStillRunning = this.effectsArray[i].effect.drawEffect();
            if (baseEffectIsStillRunning == false && i == this.currIdx)
            {
                this.effectsArray[i].isRunning = false;
                evalNextEffectsRunning = true;
            }
        }
    }

    if (evalNextEffectsRunning == true)
        allEffectsDidRun = this.initNextEffectsRunning();

    if (allEffectsDidRun == true) {
        this.stop();
        isRunning = false;
        for (var i = 0; i < this.effectsArray.length; i++)
            this.effectsArray[i].isRunning = false;

        this.currIdx = this.direction == Spry.forwards ? this.effectsArray.length: -1;
    }
    return isRunning;
};

Spry.Effect.Cluster.prototype.initNextEffectsRunning = function()
{
    var allEffectsDidRun = false;
    var step = this.direction == Spry.forwards ? 1 : -1;
    var stop = this.direction == Spry.forwards ? this.effectsArray.length : -1;
    this.currIdx+=step;
    if ( (this.currIdx > (this.effectsArray.length - 1) && this.direction == Spry.forwards) || (this.currIdx < 0 && this.direction == Spry.backwards))
        allEffectsDidRun = true;
    else
        for (var i = this.currIdx; i != stop; i+=step)
        {
            if ((i > this.currIdx && this.direction == Spry.forwards || i < this.currIdx && this.direction == Spry.backwards) && this.effectsArray[i].kind == "queue")
                break;
            this.effectsArray[i].effect.start(true);
            this.effectsArray[i].isRunning = true;
            this.currIdx = i;
        }

    return allEffectsDidRun;
};

Spry.Effect.Cluster.prototype.toggleCluster = function()
{
    if (!this.direction)
    {
        this.direction = Spry.forwards;
        return;
    }

    if (this.options.toggle == true)
    {
        if (this.direction == Spry.forwards)
        {
            this.direction = Spry.backwards;
            this.notifyObservers('onToggle', this);
            this.currIdx = this.effectsArray.length;
        }
        else if (this.direction == Spry.backwards)
        {
            this.direction = Spry.forwards;
            this.currIdx = -1;
        }
    }
    else
    {
        if (this.direction == Spry.forwards)
            this.currIdx = -1;
        else if (this.direction == Spry.backwards)
            this.currIdx = this.effectsArray.length;
    }
};

Spry.Effect.Cluster.prototype.doToggle = function()
{
    this.toggleCluster();

    // toggle all effects of the cluster, too
    for (var i = 0; i < this.effectsArray.length; i++)
    {
        if (this.effectsArray[i].effect.options && (this.effectsArray[i].effect.options.toggle != null))
            if (this.effectsArray[i].effect.options.toggle == true)
                this.effectsArray[i].effect.doToggle();
    }
};

Spry.Effect.Cluster.prototype.cancel = function()
{
    for (var i = 0; i < this.effectsArray.length; i++)
        if (this.effectsArray[i].effect.isRunning)
            this.effectsArray[i].effect.cancel();
    
    var elapsed = this.getElapsedMilliseconds();
    if (this.startMilliseconds > 0 && elapsed < this.options.duration)
        this.cancelRemaining = this.options.transition(elapsed, 0, 1, this.options.duration);
    this.stopFlagReset();
    this.notifyObservers('onCancel', this);
    this.isRunning = false;
};

Spry.Effect.Cluster.prototype.addNextEffect = function(effect)
{
    effect.addObserver(this);
    this.effectsArray[this.effectsArray.length] = new this.ClusteredEffect(effect, "queue");
    if (this.effectsArray.length == 1)
    {
        // with the first added effect we know the element
        // that the cluster is working on
        this.element = effect.element;
    }
};

Spry.Effect.Cluster.prototype.addParallelEffect = function(effect)
{
    if (this.effectsArray.length == 0 || this.effectsArray[this.effectsArray.length-1].kind != 'parallel')
        effect.addObserver(this);

    this.effectsArray[this.effectsArray.length] = new this.ClusteredEffect(effect, "parallel");
    if (this.effectsArray.length == 1)
    {
        // with the first added effect we know the element
        // that the cluster is working on
        this.element = effect.element;
    }
};

Spry.Effect.Cluster.prototype.prepareStart = function()
{
    this.toggleCluster();
};

//////////////////////////////////////////////////////////////////////
//
// Combination effects
// Custom effects can be build by combining basic effect bahaviour
// like Move, Size, Color, Opacity
//
//////////////////////////////////////////////////////////////////////

Spry.Effect.Fade = function (element, options) 
{
    if (!this.notStaticAnimator)
        return Spry.Effect.Utils.showInitError('Fade');

    Spry.Effect.Cluster.call(this, options);

    this.name = 'Fade';
    var element = Spry.Effect.getElement(element);
    this.element = element;
    if (!this.element)
        return;
    var durationInMilliseconds = 1000;
    var fromOpacity = 0.0;
    var toOpacity = 100.0;
    var doToggle = false;
    var transition = Spry.fifthTransition;
    var fps = 60;
    var originalOpacity = 0;
    if(/MSIE/.test(navigator.userAgent))
        originalOpacity = parseInt(Spry.Effect.getStylePropRegardlessOfDisplayState(this.element, 'filter').replace(/alpha\(opacity=([0-9]{1,3})\)/g, '$1'), 10);
    else
        originalOpacity = parseInt(Spry.Effect.getStylePropRegardlessOfDisplayState(this.element, 'opacity') * 100, 10);

    if (isNaN(originalOpacity))
        originalOpacity = 100;

    if (options)
    {
        if (options.duration != null) durationInMilliseconds = options.duration;
        if (options.from != null){
            if (Spry.Effect.Utils.isPercentValue(options.from))
                fromOpacity = Spry.Effect.Utils.getPercentValue(options.from) * originalOpacity / 100;
            else
                fromOpacity = options.from;
        }
        if (options.to != null)
        {   
            if (Spry.Effect.Utils.isPercentValue(options.to))
                toOpacity = Spry.Effect.Utils.getPercentValue(options.to) * originalOpacity / 100;
            else
                toOpacity = options.to;
        }
        if (options.toggle != null) doToggle = options.toggle;
        if (options.transition != null) transition = options.transition;
        if (options.fps != null) fps = options.fps;
        else this.options.transition = transition;
    }

    fromOpacity = fromOpacity/ 100.0;
    toOpacity = toOpacity / 100.0;

    options = {duration: durationInMilliseconds, toggle: doToggle, transition: transition, from: fromOpacity, to: toOpacity, fps: fps};
    var fadeEffect = new Spry.Effect.Opacity(element, fromOpacity, toOpacity, options);
    this.addNextEffect(fadeEffect);
};

Spry.Effect.Fade.prototype = new Spry.Effect.Cluster();
Spry.Effect.Fade.prototype.constructor = Spry.Effect.Fade;

Spry.Effect.Blind = function (element, options)
{
    if (!this.notStaticAnimator)
        return Spry.Effect.Utils.showInitError('Blind'); 

    Spry.Effect.Cluster.call(this, options);

    this.name = 'Blind';
    var element = Spry.Effect.getElement(element);
    this.element = element;
    if (!this.element)
        return;
    var durationInMilliseconds = 1000;
    var doToggle = false;
    var kindOfTransition = Spry.circleTransition;
    var fps = 60;
    var doScaleContent = false;

    Spry.Effect.makeClipping(element);

    var originalRect = Spry.Effect.getDimensionsRegardlessOfDisplayState(element);
    var fromHeightPx  = originalRect.height;
    var toHeightPx    = 0;
    var optionFrom = options ? options.from : originalRect.height;
    var optionTo   = options ? options.to : 0;
    var fullCSSBox = false;


    if (options)
    {
        if (options.duration != null) durationInMilliseconds = options.duration;
        if (options.from != null)
        {
            if (Spry.Effect.Utils.isPercentValue(options.from))
                fromHeightPx = Spry.Effect.Utils.getPercentValue(options.from) * originalRect.height / 100;
            else
                fromHeightPx = Spry.Effect.Utils.getPixelValue(options.from);
        }
        if (options.to != null)
        {
            if (Spry.Effect.Utils.isPercentValue(options.to))
                toHeightPx = Spry.Effect.Utils.getPercentValue(options.to) * originalRect.height / 100;
            else
                toHeightPx = Spry.Effect.Utils.getPixelValue(options.to);
        }
        if (options.toggle != null) doToggle = options.toggle;
        if (options.transition != null) kindOfTransition = options.transition;
        if (options.fps != null) fps = options.fps;
        if (options.useCSSBox != null) fullCSSBox = options.useCSSBox;
    }

    var fromRect = new Spry.Effect.Utils.Rectangle;
    fromRect.width = originalRect.width;
    fromRect.height = fromHeightPx;

    var toRect = new Spry.Effect.Utils.Rectangle;
    toRect.width = originalRect.width;
    toRect.height = toHeightPx;

    options = {duration:durationInMilliseconds, toggle:doToggle, transition:kindOfTransition, scaleContent:doScaleContent, useCSSBox: fullCSSBox, from: optionFrom, to: optionTo, fps: fps};
    var blindEffect = new Spry.Effect.Size(element, fromRect, toRect, options);
    this.addNextEffect(blindEffect);
};

Spry.Effect.Blind.prototype = new Spry.Effect.Cluster();
Spry.Effect.Blind.prototype.constructor = Spry.Effect.Blind;

Spry.Effect.Highlight = function (element, options) 
{
    if (!this.notStaticAnimator)
        return Spry.Effect.Utils.showInitError('Highlight'); 

    Spry.Effect.Cluster.call(this, options);

    this.name = 'Highlight';
    var durationInMilliseconds = 1000;
    var toColor = "#ffffff";
    var doToggle = false;
    var kindOfTransition = Spry.sinusoidalTransition;
    var fps = 60;
    var element = Spry.Effect.getElement(element);
    this.element = element;
    if (!this.element)
        return;
    var fromColor = Spry.Effect.getBgColor(element);
    if (fromColor == "transparent") fromColor = "#ffff99";

    if (options)
    {
        if (options.duration != null) durationInMilliseconds = options.duration;
        if (options.from != null) fromColor = options.from;
        if (options.to != null) toColor = options.to;
        if (options.toggle != null) doToggle = options.toggle;
        if (options.transition != null) kindOfTransition = options.transition;
        if (options.fps != null) fps = options.fps;
    }

    if ( fromColor.indexOf('rgb') != -1 )
        var fromColor = Spry.Effect.Utils.rgb(parseInt(fromColor.substring(fromColor.indexOf('(')+1, fromColor.indexOf(',')),10), parseInt(fromColor.substring(fromColor.indexOf(',')+1, fromColor.lastIndexOf(',')),10), parseInt(fromColor.substring(fromColor.lastIndexOf(',')+1, fromColor.indexOf(')')),10));

    if ( toColor.indexOf('rgb') != -1 )
        var toColor = Spry.Effect.Utils.rgb(parseInt(toColor.substring(toColor.indexOf('(')+1, toColor.indexOf(',')),10), parseInt(toColor.substring(toColor.indexOf(',')+1, toColor.lastIndexOf(',')),10), parseInt(toColor.substring(toColor.lastIndexOf(',')+1, toColor.indexOf(')')),10));

    var fromColor = Spry.Effect.Utils.longColorVersion(fromColor);
    var toColor = Spry.Effect.Utils.longColorVersion(toColor);

    this.restoreBackgroundImage = Spry.Effect.getStyleProp(element, 'background-image');

    options = {duration: durationInMilliseconds, toggle: doToggle, transition: kindOfTransition, fps: fps};
    var highlightEffect = new Spry.Effect.Color(element, fromColor, toColor, options);
    this.addNextEffect(highlightEffect);

    this.addObserver({
        onPreEffect:
        function(effect){
            Spry.Effect.setStyleProp(effect.element, 'background-image', 'none');
        },
        onPostEffect:
        function(effect){
            Spry.Effect.setStyleProp(effect.element, 'background-image', effect.restoreBackgroundImage);

            if (effect.direction == Spry.forwards && effect.options.restoreColor)
                Spry.Effect.setStyleProp(element, 'background-color', effect.options.restoreColor);     
        }
    });
};

Spry.Effect.Highlight.prototype = new Spry.Effect.Cluster();
Spry.Effect.Highlight.prototype.constructor = Spry.Effect.Highlight;

Spry.Effect.Slide = function (element, options) 
{
    if (!this.notStaticAnimator)
        return Spry.Effect.Utils.showInitError('Slide'); 

    Spry.Effect.Cluster.call(this, options);

    this.name = 'Slide';
    var element = Spry.Effect.getElement(element);
    this.element = element;
    if (!this.element)
        return;
    var durationInMilliseconds = 1000;
    var doToggle = false;
    var kindOfTransition = Spry.sinusoidalTransition;
    var fps = 60;
    var slideHorizontally = false;
    var firstChildElt = Spry.Effect.Utils.getFirstChildElement(element);
    var direction = -1;

    // IE 7 does not clip static positioned elements -> make element position relative
    if(/MSIE 7.0/.test(navigator.userAgent) && /Windows NT/.test(navigator.userAgent))
        Spry.Effect.makePositioned(element);

    Spry.Effect.makeClipping(element);

    // for IE 6 on win: check if position is static or fixed -> not supported and would cause trouble
    if(/MSIE 6.0/.test(navigator.userAgent) && /Windows NT/.test(navigator.userAgent))
    {
        var pos = Spry.Effect.getStyleProp(element, 'position');
        if(pos && (pos == 'static' || pos == 'fixed'))
        {
            Spry.Effect.setStyleProp(element, 'position', 'relative');
            Spry.Effect.setStyleProp(element, 'top', '');
            Spry.Effect.setStyleProp(element, 'left', '');
        }
    }

    if(firstChildElt)
    {
        Spry.Effect.makePositioned(firstChildElt);
        Spry.Effect.makeClipping(firstChildElt);
  
        var childRect = Spry.Effect.getDimensionsRegardlessOfDisplayState(firstChildElt, element);
        Spry.Effect.setStyleProp(firstChildElt, 'width', childRect.width + 'px');
    }

    var fromDim = Spry.Effect.getDimensionsRegardlessOfDisplayState(element);

    var initDim = new Spry.Effect.Utils.Rectangle();
    var toDim = new Spry.Effect.Utils.Rectangle();
    initDim.width = toDim.width = fromDim.width;
    initDim.height = toDim.height = fromDim.height;

    if (!this.options.to){
        if (!options)
            options = {};

        options.to = '0%';
    }

    if (options && options.horizontal !== null && options.horizontal === true)
        slideHorizontally = true;

    if (options.duration != null) durationInMilliseconds = options.duration;

    if (options.from != null)
    {
        if(slideHorizontally)
        {
                if (Spry.Effect.Utils.isPercentValue(options.from))
                    fromDim.width = initDim.width * Spry.Effect.Utils.getPercentValue(options.from) / 100;
                else
                    fromDim.width = Spry.Effect.Utils.getPixelValue(options.from);
        }
        else
        {
                if (Spry.Effect.Utils.isPercentValue(options.from))
                    fromDim.height = initDim.height * Spry.Effect.Utils.getPercentValue(options.from) / 100;
                else
                    fromDim.height = Spry.Effect.Utils.getPixelValue(options.from);
        }
    }

    if (options.to != null)
    {
            if(slideHorizontally)
            {
                if (Spry.Effect.Utils.isPercentValue(options.to))
                    toDim.width = initDim.width * Spry.Effect.Utils.getPercentValue(options.to) / 100;
                else
                    toDim.width = Spry.Effect.Utils.getPixelValue(options.to);
            }
            else
            {
                if (Spry.Effect.Utils.isPercentValue(options.to))
                    toDim.height = initDim.height * Spry.Effect.Utils.getPercentValue(options.to) / 100;
                else
                    toDim.height = Spry.Effect.Utils.getPixelValue(options.to);
        }
    }
    if (options.toggle != null) doToggle = options.toggle;
    if (options.transition != null) kindOfTransition = options.transition;
    if (options.fps != null) fps = options.fps;

    options = {duration: durationInMilliseconds, transition: kindOfTransition, scaleContent: false, toggle:doToggle, fps: fps};
    var size = new Spry.Effect.Size(element, fromDim, toDim, options);
    this.addParallelEffect(size);

    if ( (fromDim.width < toDim.width && slideHorizontally) || (fromDim.height < toDim.height && !slideHorizontally))
        direction = 1;
    
    var fromPos = new Spry.Effect.Utils.Position();
    var toPos = new Spry.Effect.Utils.Position();
    toPos.x = fromPos.x = Spry.Effect.intPropStyle(firstChildElt, 'left');
    toPos.y = fromPos.y = Spry.Effect.intPropStyle(firstChildElt, 'top');
    toPos.units = fromPos.units;

    if (slideHorizontally)
        toPos.x = parseInt(fromPos.x + direction * (fromDim.width - toDim.width), 10);
    else
        toPos.y = parseInt(fromPos.y + direction * (fromDim.height - toDim.height), 10);

    if (direction == 1){
        var tmp = fromPos;
        var fromPos = toPos;
        var toPos = tmp;
    }

    options = {duration: durationInMilliseconds, transition: kindOfTransition, toggle:doToggle, from: fromPos, to: toPos, fps: fps};
    var move = new Spry.Effect.Move(firstChildElt, fromPos, toPos, options);
    this.addParallelEffect(move);
};

Spry.Effect.Slide.prototype = new Spry.Effect.Cluster();
Spry.Effect.Slide.prototype.constructor = Spry.Effect.Slide;

Spry.Effect.Grow = function (element, options) 
{
    if (!element)
        return;
    if (!this.notStaticAnimator)
        return Spry.Effect.Utils.showInitError('Grow');

    Spry.Effect.Cluster.call(this, options);

    this.name = 'Grow';
    var durationInMilliseconds = 1000;
    var doToggle = false;
    var doScaleContent = true;
    var calcHeight = false;
    var growFromCenter = true;
    var fullCSSBox = false;
    var kindOfTransition = Spry.squareTransition;
    var fps = 60;
    var element = Spry.Effect.getElement(element);
    this.element = element;
    if (!this.element)
        return;

    Spry.Effect.makeClipping(element);

    var dimRect = Spry.Effect.getDimensionsRegardlessOfDisplayState(element);
    var originalWidth = dimRect.width;
    var originalHeight = dimRect.height;
    var propFactor = (originalWidth == 0) ? 1 :originalHeight/originalWidth;

    var fromRect = new Spry.Effect.Utils.Rectangle;
    fromRect.width = 0;
    fromRect.height = 0;

    var toRect = new Spry.Effect.Utils.Rectangle;
    toRect.width = originalWidth;
    toRect.height = originalHeight;

    var optionFrom = options ? options.from : dimRect.width;
    var optionTo   = options ? options.to : 0;
    var pixelValue = Spry.Effect.Utils.getPixelValue;

    if (options)
    {
        if (options.growCenter != null) growFromCenter = options.growCenter;
        if (options.duration != null) durationInMilliseconds = options.duration;
        if (options.useCSSBox != null) fullCSSBox = options.useCSSBox;
        if (options.scaleContent != null) doScaleContent = options.scaleContent;
        if (options.from != null) 
        {
            if (Spry.Effect.Utils.isPercentValue(options.from))
            {
                fromRect.width = originalWidth * (Spry.Effect.Utils.getPercentValue(options.from) / 100);
                fromRect.height = originalHeight * (Spry.Effect.Utils.getPercentValue(options.from) / 100);
            }
            else
            {
                if(calcHeight)
                {
                    fromRect.height = pixelValue(options.from);
                    fromRect.width  = pixelValue(options.from) / propFactor;
                }
                else
                {
                    fromRect.width = pixelValue(options.from);
                    fromRect.height = propFactor * pixelValue(options.from);
                }
            }
        }
        if (options.to != null)
        {
            if (Spry.Effect.Utils.isPercentValue(options.to))
            {
                toRect.width = originalWidth * (Spry.Effect.Utils.getPercentValue(options.to) / 100);
                toRect.height = originalHeight * (Spry.Effect.Utils.getPercentValue(options.to) / 100);
            }
            else
            {
                if(calcHeight)
                {
                    toRect.height = pixelValue(options.to);
                    toRect.width  = pixelValue(options.to) / propFactor;
                }
                else
                {
                    toRect.width = pixelValue(options.to);
                    toRect.height = propFactor * pixelValue(options.to);
                }
            }
        }
        if (options.toggle != null) doToggle = options.toggle;
        if (options.transition != null) kindOfTransition = options.transition;
        if (options.fps != null) fps = options.fps;
    }

    options = {duration:durationInMilliseconds, toggle:doToggle, transition:kindOfTransition, scaleContent:doScaleContent, useCSSBox: fullCSSBox, fps: fps};
    var sizeEffect = new Spry.Effect.Size(element, fromRect, toRect, options);
    this.addParallelEffect(sizeEffect);

    if(growFromCenter)
    {
        Spry.Effect.makePositioned(element);

        var startOffsetPosition = new Spry.Effect.Utils.Position();
        startOffsetPosition.x = parseInt(Spry.Effect.getStylePropRegardlessOfDisplayState(element, "left"), 10);
        startOffsetPosition.y = parseInt(Spry.Effect.getStylePropRegardlessOfDisplayState(element, "top"), 10); 
        if (!startOffsetPosition.x) startOffsetPosition.x = 0;
        if (!startOffsetPosition.y) startOffsetPosition.y = 0;

        options = {duration:durationInMilliseconds, toggle:doToggle, transition:kindOfTransition, from: optionFrom, to: optionTo, fps: fps};
        var fromPos = new Spry.Effect.Utils.Position;
        fromPos.x = startOffsetPosition.x + (originalWidth - fromRect.width) / 2.0;
        fromPos.y = startOffsetPosition.y + (originalHeight - fromRect.height) / 2.0;

        var toPos = new Spry.Effect.Utils.Position;
        toPos.x = startOffsetPosition.x + (originalWidth - toRect.width) / 2.0;
        toPos.y = startOffsetPosition.y + (originalHeight - toRect.height) / 2.0;

        var moveEffect = new Spry.Effect.Move(element, fromPos, toPos, options);
        this.addParallelEffect(moveEffect);
    }
};

Spry.Effect.Grow.prototype = new Spry.Effect.Cluster();
Spry.Effect.Grow.prototype.constructor = Spry.Effect.Grow;

Spry.Effect.Shake = function (element, options) 
{
    if (!this.notStaticAnimator)
        return Spry.Effect.Utils.showInitError('Shake'); 

    Spry.Effect.Cluster.call(this, options);

    // toggle is not supported
    this.options.direction = false;
    if (this.options.toggle)
        this.options.toggle = false;

    this.name = 'Shake';

    var element = Spry.Effect.getElement(element);
    this.element = element;
    if (!this.element)
        return;
    var durationInMilliseconds = 100;
    var kindOfTransition = Spry.linearTransition;
    var fps = 60;
    var steps = 4;

    if (options)
    {
        if (options.duration != null) steps = Math.ceil(this.options.duration / durationInMilliseconds) - 1;
        if (options.fps != null) fps = options.fps;
        if (options.transition != null) kindOfTransition = options.transition;
    }

    Spry.Effect.makePositioned(element);
    
    var startOffsetPosition = new Spry.Effect.Utils.Position();
    startOffsetPosition.x = parseInt(Spry.Effect.getStyleProp(element, "left"), 10);
    startOffsetPosition.y = parseInt(Spry.Effect.getStyleProp(element, "top"), 10);
    if (!startOffsetPosition.x) startOffsetPosition.x = 0;
    if (!startOffsetPosition.y) startOffsetPosition.y = 0;

    var centerPos = new Spry.Effect.Utils.Position;
    centerPos.x = startOffsetPosition.x;
    centerPos.y = startOffsetPosition.y;

    var rightPos = new Spry.Effect.Utils.Position;
    rightPos.x = startOffsetPosition.x + 20;
    rightPos.y = startOffsetPosition.y + 0;

    var leftPos = new Spry.Effect.Utils.Position;
    leftPos.x = startOffsetPosition.x + -20;
    leftPos.y = startOffsetPosition.y + 0;

    options = {duration:Math.ceil(durationInMilliseconds / 2), toggle:false, fps: fps, transition: kindOfTransition};
    var effect = new Spry.Effect.Move(element, centerPos, rightPos, options);
    this.addNextEffect(effect);

    options = {duration:durationInMilliseconds, toggle:false, fps:fps, transition: kindOfTransition};
    var effectToRight = new Spry.Effect.Move(element, rightPos, leftPos, options);
    var effectToLeft = new Spry.Effect.Move(element, leftPos, rightPos, options);

    for (var i=0; i < steps; i++)
    {
        if (i % 2 == 0)
            this.addNextEffect(effectToRight);
        else
            this.addNextEffect(effectToLeft);
    }
    var pos = (steps % 2 == 0) ? rightPos: leftPos;

    options = {duration:Math.ceil(durationInMilliseconds / 2), toggle:false, fps: fps, transition: kindOfTransition};
    var effect = new Spry.Effect.Move(element, pos, centerPos, options);
    this.addNextEffect(effect);
};
Spry.Effect.Shake.prototype = new Spry.Effect.Cluster();
Spry.Effect.Shake.prototype.constructor = Spry.Effect.Shake;
Spry.Effect.Shake.prototype.doToggle = function(){};

Spry.Effect.Squish = function (element, options) 
{
    if (!this.notStaticAnimator)
        return Spry.Effect.Utils.showInitError('Squish');

    if (!options)
        options = {};
    if (!options.to)
        options.to = '0%';
    if (!options.from)
        options.from = '100%';

    options.growCenter = false;
    Spry.Effect.Grow.call(this, element, options);
    this.name = 'Squish';
};
Spry.Effect.Squish.prototype = new Spry.Effect.Grow();
Spry.Effect.Squish.prototype.constructor = Spry.Effect.Squish;

Spry.Effect.Pulsate = function (element, options) 
{
    if (!this.notStaticAnimator)
        return Spry.Effect.Utils.showInitError('Pulsate');

    Spry.Effect.Cluster.call(this, options);

    // toggle is not supported
    this.options.direction = false;
    if (this.options.toggle)
        this.options.toggle = false;

    var element = Spry.Effect.getElement(element);
    var originalOpacity = 0;
    this.element = element;
    if (!this.element)
        return;

    this.name = 'Pulsate';
    var durationInMilliseconds = 100;
    var fromOpacity = 100.0;
    var toOpacity = 0.0;
    var doToggle = false;
    var kindOfTransition = Spry.linearTransition;
    var fps = 60;
    if(/MSIE/.test(navigator.userAgent))
        originalOpacity = parseInt(Spry.Effect.getStylePropRegardlessOfDisplayState(this.element, 'filter').replace(/alpha\(opacity=([0-9]{1,3})\)/g, '$1'), 10);
    else
        originalOpacity = parseInt(Spry.Effect.getStylePropRegardlessOfDisplayState(this.element, 'opacity') * 100, 10);

    if (isNaN(originalOpacity)){
        originalOpacity = 100;
    }

    if (options)
    {
        if (options.from != null){
            if (Spry.Effect.Utils.isPercentValue(options.from))
                fromOpacity = Spry.Effect.Utils.getPercentValue(options.from) * originalOpacity / 100;
            else
                fromOpacity = options.from;
        }
        if (options.to != null)
        {   
            if (Spry.Effect.Utils.isPercentValue(options.to))
                toOpacity = Spry.Effect.Utils.getPercentValue(options.to) * originalOpacity / 100;
            else
                toOpacity = options.to;
        }
        if (options.transition != null) kindOfTransition = options.transition;
        if (options.fps != null) fps = options.fps;
    }

    options = {duration:durationInMilliseconds, toggle:doToggle, transition:kindOfTransition, fps:fps};
    fromOpacity = fromOpacity / 100.0;
    toOpacity = toOpacity / 100.0;

    var fadeEffect = new Spry.Effect.Opacity(element, fromOpacity, toOpacity, options);
    var appearEffect = new Spry.Effect.Opacity(element, toOpacity, fromOpacity, options);
    var steps = parseInt(this.options.duration / 200, 10);
    for (var i=0; i < steps; i++){ 
        this.addNextEffect(fadeEffect);
        this.addNextEffect(appearEffect);
    }
};
Spry.Effect.Pulsate.prototype = new Spry.Effect.Cluster();
Spry.Effect.Pulsate.prototype.constructor = Spry.Effect.Pulsate;
Spry.Effect.Pulsate.prototype.doToggle = function(){};

Spry.Effect.Puff = function (element, options)
{
    if (!this.notStaticAnimator)
        return Spry.Effect.Utils.showInitError('Puff'); 

    Spry.Effect.Cluster.call(this, options);

    var element = Spry.Effect.getElement(element);
    this.element = element; 
    if (!this.element)
        return;
    this.name = 'Puff';
    var doToggle = false;
    var doScaleContent = false;
    var durationInMilliseconds = 1000;
    var kindOfTransition = Spry.fifthTransition;
    var fps = 60;

    Spry.Effect.makePositioned(element); // for move

    if (options){
        if (options.toggle != null) doToggle = options.toggle;
        if (options.duration != null) durationInMilliseconds = options.duration;
        if (options.transition != null) kindOfTransition = options.transition;
        if (options.fps != null) fps = options.fps;
    }
    var originalRect = Spry.Effect.getDimensions(element);
    var startWidth = originalRect.width;
    var startHeight = originalRect.height;

    options = {duration:durationInMilliseconds, toggle:doToggle, transition: kindOfTransition, fps: fps};

    var fromOpacity = 1.0;
    var toOpacity = 0.0;
    var opacityEffect = new Spry.Effect.Opacity(element, fromOpacity, toOpacity, options);
    this.addParallelEffect(opacityEffect);

    var fromPos = Spry.Effect.getPosition(element);

    var toPos = new Spry.Effect.Utils.Position;
    toPos.x = startWidth / 2.0 * -1.0;
    toPos.y = startHeight / 2.0 * -1.0;

    options = {duration:durationInMilliseconds, toggle:doToggle, transition:kindOfTransition, from: fromPos, to: toPos, fps: fps};
    var moveEffect = new Spry.Effect.Move(element, fromPos, toPos, options);
    this.addParallelEffect(moveEffect);

    var self = this;
    this.addObserver({
        onPreEffect:function(){if (self.direction == Spry.backwards){self.element.style.display = 'block';}},
        onPostEffect: function(){if (self.direction == Spry.forwards){self.element.style.display = 'none';}}
    });
};
Spry.Effect.Puff.prototype = new Spry.Effect.Cluster;
Spry.Effect.Puff.prototype.constructor = Spry.Effect.Puff;

Spry.Effect.DropOut = function (element, options)
{
    if (!this.notStaticAnimator)
        return Spry.Effect.Utils.showInitError('DropOut');

    Spry.Effect.Cluster.call(this, options);

    var element = Spry.Effect.getElement(element);
    this.element = element;
    if (!this.element)
        return;
    var durationInMilliseconds = 1000;
    var fps = 60;
    var kindOfTransition = Spry.fifthTransition;
    var direction = Spry.forwards;
    var doToggle = false;
    this.name = 'DropOut';

    Spry.Effect.makePositioned(element);

    if (options)
    {
        if (options.duration != null) durationInMilliseconds = options.duration;
        if (options.toggle != null) doToggle = options.toggle;
        if (options.fps != null) fps = options.fps;
        if (options.transition != null) kindOfTransition = options.transition;
        if (options.dropIn != null) direction = -1;
    }

    var startOffsetPosition = new Spry.Effect.Utils.Position();
    startOffsetPosition.x = parseInt(Spry.Effect.getStyleProp(element, "left"), 10);
    startOffsetPosition.y = parseInt(Spry.Effect.getStyleProp(element, "top"), 10); 
    if (!startOffsetPosition.x) startOffsetPosition.x = 0;
    if (!startOffsetPosition.y) startOffsetPosition.y = 0;

    var fromPos = new Spry.Effect.Utils.Position;
    fromPos.x = startOffsetPosition.x + 0;
    fromPos.y = startOffsetPosition.y + 0;

    var toPos = new Spry.Effect.Utils.Position;
    toPos.x = startOffsetPosition.x + 0;
    toPos.y = startOffsetPosition.y + (direction * 160);

    options = {from:fromPos, to:toPos, duration:durationInMilliseconds, toggle:doToggle, transition: kindOfTransition, fps: fps};
    var moveEffect = new Spry.Effect.Move(element, options.from, options.to, options);
    this.addParallelEffect(moveEffect);

    var fromOpacity = 1.0;
    var toOpacity = 0.0;
    options = {duration:durationInMilliseconds, toggle:doToggle, transition: kindOfTransition, fps: fps};
    var opacityEffect = new Spry.Effect.Opacity(element, fromOpacity, toOpacity, options);
    this.addParallelEffect(opacityEffect);

    var self = this;
    this.addObserver({
        onPreEffect:function(){self.element.style.display = 'block';},
        onPostEffect: function(){if (self.direction == Spry.forwards){self.element.style.display = 'none';}}
    });

};
Spry.Effect.DropOut.prototype = new Spry.Effect.Cluster();
Spry.Effect.DropOut.prototype.constructor = Spry.Effect.DropOut;

Spry.Effect.Fold = function (element, options)
{
    if (!this.notStaticAnimator)
        return Spry.Effect.Utils.showInitError('Fold');

    Spry.Effect.Cluster.call(this, options);

    var element = Spry.Effect.getElement(element);
    this.element = element;
    if (!this.element)
        return;
    this.name = 'Fold';
    var durationInMilliseconds = 1000;
    var doToggle = false;
    var doScaleContent = true;
    var fullCSSBox = false;
    var kindOfTransition = Spry.fifthTransition;
    var fps = fps;
    
    Spry.Effect.makeClipping(element);

    var originalRect = Spry.Effect.getDimensionsRegardlessOfDisplayState(element);
    var startWidth = originalRect.width;
    var startHeight = originalRect.height;

    var stopWidth = startWidth;
    var stopHeight = startHeight / 5;

    var fromRect = new Spry.Effect.Utils.Rectangle;
    fromRect.width = startWidth;
    fromRect.height = startHeight;

    var toRect = new Spry.Effect.Utils.Rectangle;
    toRect.width = stopWidth;
    toRect.height = stopHeight;

    if (options)
    {
        if (options.duration != null) durationInMilliseconds = Math.ceil(options.duration/2);
        if (options.toggle != null) doToggle = options.toggle;
        if (options.useCSSBox != null) fullCSSBox = options.useCSSBox; 
        if (options.fps != null) fps = options.fps;
        if (options.transition != null) kindOfTransition = options.transition;
    }

    options = {duration:durationInMilliseconds, toggle:doToggle, scaleContent:doScaleContent, useCSSBox: fullCSSBox, transition: kindOfTransition, fps: fps};
    var sizeEffect = new Spry.Effect.Size(element, fromRect, toRect, options);
    this.addNextEffect(sizeEffect);

    fromRect.width = toRect.width;
    fromRect.height = toRect.height;
    toRect.width = '0%';
    var sizeEffect = new Spry.Effect.Size(element, fromRect, toRect, options);
    this.addNextEffect(sizeEffect);
};

Spry.Effect.Fold.prototype = new Spry.Effect.Cluster();
Spry.Effect.Fold.prototype.constructor = Spry.Effect.Fold;

//////////////////////////////////////////////////////////////
//                                                                                                                  //
// The names of some of the static effect functions                 //
// changed in Spry 1.5. These wrappers will insure that we  //
// remain compatible with previous versions of Spry.                //
//                                                                                                                  //
//////////////////////////////////////////////////////////////

Spry.Effect.DoFade = function (element, options)
{
    return Spry.Effect.Utils.DoEffect('Fade', element, options);
};

Spry.Effect.DoBlind = function (element, options)
{
    return Spry.Effect.Utils.DoEffect('Blind', element, options);
};

Spry.Effect.DoHighlight = function (element, options)
{
    return Spry.Effect.Utils.DoEffect('Highlight', element, options);
};

Spry.Effect.DoSlide = function (element, options)
{
    return Spry.Effect.Utils.DoEffect('Slide', element, options);
};

Spry.Effect.DoGrow = function (element, options)
{
    return Spry.Effect.Utils.DoEffect('Grow', element, options);
};

Spry.Effect.DoShake = function (element, options)
{
    return Spry.Effect.Utils.DoEffect('Shake', element, options);
};

Spry.Effect.DoSquish = function (element, options)
{
    return Spry.Effect.Utils.DoEffect('Squish', element, options);
};

Spry.Effect.DoPulsate = function (element, options)
{
    return Spry.Effect.Utils.DoEffect('Pulsate', element, options);
};

Spry.Effect.DoPuff = function (element, options)
{
    return Spry.Effect.Utils.DoEffect('Puff', element, options);
};

Spry.Effect.DoDropOut = function (element, options)
{
    return Spry.Effect.Utils.DoEffect('DropOut', element, options);
};

Spry.Effect.DoFold = function (element, options)
{
    return Spry.Effect.Utils.DoEffect('Fold', element, options);
};