// Copyright (c) 2005 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)// Contributors://  Justin Palmer (http://encytemedia.com/)//  Mark Pilgrim (http://diveintomark.org/)//  Martin Bialasinki// // See scriptaculous.js for full license.  /* ------------- element ext -------------- */   // converts rgb() and #xxx to #xxxxxx format,  // returns self (or first argument) if not convertable  String.prototype.parseColor = function() {    var color = '#';    if(this.slice(0,4) == 'rgb(') {      var cols = this.slice(4,this.length-1).split(',');      var i=0; do { color += parseInt(cols[i]).toColorPart() } while (++i<3);    } else {      if(this.slice(0,1) == '#') {        if(this.length==4) for(var i=1;i<4;i++) color += (this.charAt(i) + this.charAt(i)).toLowerCase();        if(this.length==7) color = this.toLowerCase();      }    }    return(color.length==7 ? color : (arguments[0] || this));  }Element.collectTextNodes = function(element) {    return $A($(element).childNodes).collect( function(node) {    return (node.nodeType==3 ? node.nodeValue :       (node.hasChildNodes() ? Element.collectTextNodes(node) : ''));  }).flatten().join('');}Element.collectTextNodesIgnoreClass = function(element, className) {    return $A($(element).childNodes).collect( function(node) {    return (node.nodeType==3 ? node.nodeValue :       ((node.hasChildNodes() && !Element.hasClassName(node,className)) ?         Element.collectTextNodes(node) : ''));  }).flatten().join('');}Element.setStyle = function(element, style) {  element = $(element);  for(k in style) element.style[k.camelize()] = style[k];}Element.setContentZoom = function(element, percent) {    Element.setStyle(element, {fontSize: (percent/100) + 'em'});     if(navigator.appVersion.indexOf('AppleWebKit')>0) window.scrollBy(0,0);  }Element.getOpacity = function(element){    var opacity;  if (opacity = Element.getStyle(element, 'opacity'))      return parseFloat(opacity);    if (opacity = (Element.getStyle(element, 'filter') || '').match(/alpha\(opacity=(.*)\)/))      if(opacity[1]) return parseFloat(opacity[1]) / 100;    return 1.0;  }Element.setOpacity = function(element, value){    element= $(element);    if (value == 1){    Element.setStyle(element, { opacity:       (/Gecko/.test(navigator.userAgent) && !/Konqueror|Safari|KHTML/.test(navigator.userAgent)) ?       0.999999 : null });    if(/MSIE/.test(navigator.userAgent))        Element.setStyle(element, {filter: Element.getStyle(element,'filter').replace(/alpha\([^\)]*\)/gi,'')});    } else {      if(value < 0.00001) value = 0;      Element.setStyle(element, {opacity: value});    if(/MSIE/.test(navigator.userAgent))       Element.setStyle(element,        { filter: Element.getStyle(element,'filter').replace(/alpha\([^\)]*\)/gi,'') +                 'alpha(opacity='+value*100+')' });    }   }   Element.getInlineOpacity = function(element){    return $(element).style.opacity || '';}  Element.childrenWithClassName = function(element, className) {    return $A($(element).getElementsByTagName('*')).select(    function(c) { return Element.hasClassName(c, className) });}Array.prototype.call = function() {  var args = arguments;  this.each(function(f){ f.apply(this, args) });}/*--------------------------------------------------------------------------*/var Effect = {  tagifyText: function(element) {    var tagifyStyle = 'position:relative';    if(/MSIE/.test(navigator.userAgent)) tagifyStyle += ';zoom:1';    element = $(element);    $A(element.childNodes).each( function(child) {      if(child.nodeType==3) {        child.nodeValue.toArray().each( function(character) {          element.insertBefore(            Builder.node('span',{style: tagifyStyle},              character == ' ' ? String.fromCharCode(160) : character),               child);        });        Element.remove(child);      }    });  },  multiple: function(element, effect) {    var elements;    if(((typeof element == 'object') ||         (typeof element == 'function')) &&        (element.length))      elements = element;    else      elements = $(element).childNodes;          var options = Object.extend({      speed: 0.1,      delay: 0.0    }, arguments[2] || {});    var masterDelay = options.delay;    $A(elements).each( function(element, index) {      new effect(element, Object.extend(options, { delay: index * options.speed + masterDelay }));    });  },  PAIRS: {    'slide':  ['SlideDown','SlideUp'],    'blind':  ['BlindDown','BlindUp'],    'appear': ['Appear','Fade']  },  toggle: function(element, effect) {    element = $(element);    effect = (effect || 'appear').toLowerCase();    var options = Object.extend({      queue: { position:'end', scope:(element.id || 'global') }    }, arguments[2] || {});    Effect[Element.visible(element) ?       Effect.PAIRS[effect][1] : Effect.PAIRS[effect][0]](element, options);  }};var Effect2 = Effect; // deprecated/* ------------- transitions ------------- */Effect.Transitions = {}Effect.Transitions.linear = function(pos) {  return pos;}Effect.Transitions.sinoidal = function(pos) {  return (-Math.cos(pos*Math.PI)/2) + 0.5;}Effect.Transitions.reverse  = function(pos) {  return 1-pos;}Effect.Transitions.flicker = function(pos) {  return ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random()/4;}Effect.Transitions.wobble = function(pos) {  return (-Math.cos(pos*Math.PI*(9*pos))/2) + 0.5;}Effect.Transitions.pulse = function(pos) {  return (Math.floor(pos*10) % 2 == 0 ?     (pos*10-Math.floor(pos*10)) : 1-(pos*10-Math.floor(pos*10)));}Effect.Transitions.none = function(pos) {  return 0;}Effect.Transitions.full = function(pos) {  return 1;}/* ------------- core effects ------------- */Effect.ScopedQueue = Class.create();Object.extend(Object.extend(Effect.ScopedQueue.prototype, Enumerable), {  initialize: function() {    this.effects  = [];    this.interval = null;  },  _each: function(iterator) {    this.effects._each(iterator);  },  add: function(effect) {    var timestamp = new Date().getTime();        var position = (typeof effect.options.queue == 'string') ?       effect.options.queue : effect.options.queue.position;        switch(position) {      case 'front':        // move unstarted effects after this effect          this.effects.findAll(function(e){ return e.state=='idle' }).each( function(e) {            e.startOn  += effect.finishOn;            e.finishOn += effect.finishOn;          });        break;      case 'end':        // start effect after last queued effect has finished        timestamp = this.effects.pluck('finishOn').max() || timestamp;        break;    }        effect.startOn  += timestamp;    effect.finishOn += timestamp;    this.effects.push(effect);    if(!this.interval)       this.interval = setInterval(this.loop.bind(this), 40);  },  remove: function(effect) {    this.effects = this.effects.reject(function(e) { return e==effect });    if(this.effects.length == 0) {      clearInterval(this.interval);      this.interval = null;    }  },  loop: function() {    var timePos = new Date().getTime();    this.effects.invoke('loop', timePos);  }});Effect.Queues = {  instances: $H(),  get: function(queueName) {    if(typeof queueName != 'string') return queueName;        if(!this.instances[queueName])      this.instances[queueName] = new Effect.ScopedQueue();          return this.instances[queueName];  }}Effect.Queue = Effect.Queues.get('global');Effect.DefaultOptions = {  transition: Effect.Transitions.sinoidal,  duration:   1.0,   // seconds  fps:        25.0,  // max. 25fps due to Effect.Queue implementation  sync:       false, // true for combining  from:       0.0,  to:         1.0,  delay:      0.0,  queue:      'parallel'}Effect.Base = function() {};Effect.Base.prototype = {  position: null,  start: function(options) {    this.options      = Object.extend(Object.extend({},Effect.DefaultOptions), options || {});    this.currentFrame = 0;    this.state        = 'idle';    this.startOn      = this.options.delay*1000;    this.finishOn     = this.startOn + (this.options.duration*1000);    this.event('beforeStart');    if(!this.options.sync)      Effect.Queues.get(typeof this.options.queue == 'string' ?         'global' : this.options.queue.scope).add(this);  },  loop: function(timePos) {    if(timePos >= this.startOn) {      if(timePos >= this.finishOn) {        this.render(1.0);        this.cancel();        this.event('beforeFinish');        if(this.finish) this.finish();         this.event('afterFinish');        return;        }      var pos   = (timePos - this.startOn) / (this.finishOn - this.startOn);      var frame = Math.round(pos * this.options.fps * this.options.duration);      if(frame > this.currentFrame) {        this.render(pos);        this.currentFrame = frame;      }    }  },  render: function(pos) {    if(this.state == 'idle') {      this.state = 'running';      this.event('beforeSetup');      if(this.setup) this.setup();      this.event('afterSetup');    }    if(this.state == 'running') {      if(this.options.transition) pos = this.options.transition(pos);      pos *= (this.options.to-this.options.from);      pos += this.options.from;      this.position = pos;      this.event('beforeUpdate');      if(this.update) this.update(pos);      this.event('afterUpdate');    }  },  cancel: function() {