// Spry.Effect.js - version 0.38 - Spry Pre-Release 1.6
//
// 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(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(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);
};