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 /***

 MochiKit.Visual 1.4

 See <http://mochikit.com/> for documentation, downloads, license, etc.

 (c) 2005 Bob Ippolito and others.  All rights Reserved.

 ***/

 if (typeof(dojo) != 'undefined') {

     dojo.provide('MochiKit.Visual');

     dojo.require('MochiKit.Base');

     dojo.require('MochiKit.DOM');

     dojo.require('MochiKit.Style');

     dojo.require('MochiKit.Color');

 }

 if (typeof(JSAN) != 'undefined') {

     JSAN.use("MochiKit.Base", []);

     JSAN.use("MochiKit.DOM", []);

     JSAN.use("MochiKit.Style", []);

     JSAN.use("MochiKit.Color", []);

 }

 try {

     if (typeof(MochiKit.Base) === 'undefined' ||

         typeof(MochiKit.DOM) === 'undefined' ||

         typeof(MochiKit.Style) === 'undefined' ||

         typeof(MochiKit.Color) === 'undefined') {

         throw "";

     }

 } catch (e) {

     throw "MochiKit.Visual depends on MochiKit.Base, MochiKit.DOM, MochiKit.Style and MochiKit.Color!";

 }

 if (typeof(MochiKit.Visual) == "undefined") {

     MochiKit.Visual = {};

 }

 MochiKit.Visual.NAME = "MochiKit.Visual";

 MochiKit.Visual.VERSION = "1.4";

 MochiKit.Visual.__repr__ = function () {

     return "[" + this.NAME + " " + this.VERSION + "]";

 };

 MochiKit.Visual.toString = function () {

     return this.__repr__();

 };

 MochiKit.Visual._RoundCorners = function (e, options) {

     e = MochiKit.DOM.getElement(e);

     this._setOptions(options);

     if (this.options.__unstable__wrapElement) {

         e = this._doWrap(e);

     }

     var color = this.options.color;

     var C = MochiKit.Color.Color;

     if (this.options.color === "fromElement") {

         color = C.fromBackground(e);

     } else if (!(color instanceof C)) {

         color = C.fromString(color);

     }

     this.isTransparent = (color.asRGB().a <= 0);

     var bgColor = this.options.bgColor;

     if (this.options.bgColor === "fromParent") {

         bgColor = C.fromBackground(e.offsetParent);

     } else if (!(bgColor instanceof C)) {

         bgColor = C.fromString(bgColor);

     }

     this._roundCornersImpl(e, color, bgColor);

 };

 MochiKit.Visual._RoundCorners.prototype = {

     _doWrap: function (e) {

         var parent = e.parentNode;

         var doc = MochiKit.DOM.currentDocument();

         if (typeof(doc.defaultView) === "undefined"

             || doc.defaultView === null) {

             return e;

         }

         var style = doc.defaultView.getComputedStyle(e, null);

         if (typeof(style) === "undefined" || style === null) {

             return e;

         }

         var wrapper = MochiKit.DOM.DIV({"style": {

             display: "block",

             // convert padding to margin

             marginTop: style.getPropertyValue("padding-top"),

             marginRight: style.getPropertyValue("padding-right"),

             marginBottom: style.getPropertyValue("padding-bottom"),

             marginLeft: style.getPropertyValue("padding-left"),

             // remove padding so the rounding looks right

             padding: "0px"

             /*

             paddingRight: "0px",

             paddingLeft: "0px"

             */

         }});

         wrapper.innerHTML = e.innerHTML;

         e.innerHTML = "";

         e.appendChild(wrapper);

         return e;

     },

     _roundCornersImpl: function (e, color, bgColor) {

         if (this.options.border) {

             this._renderBorder(e, bgColor);

         }

         if (this._isTopRounded()) {

             this._roundTopCorners(e, color, bgColor);

         }

         if (this._isBottomRounded()) {

             this._roundBottomCorners(e, color, bgColor);

         }

     },

     _renderBorder: function (el, bgColor) {

         var borderValue = "1px solid " + this._borderColor(bgColor);

         var borderL = "border-left: "  + borderValue;

         var borderR = "border-right: " + borderValue;

         var style = "style='" + borderL + ";" + borderR +  "'";

         el.innerHTML = "<div " + style + ">" + el.innerHTML + "</div>";

     },

     _roundTopCorners: function (el, color, bgColor) {

         var corner = this._createCorner(bgColor);

         for (var i = 0; i < this.options.numSlices; i++) {

             corner.appendChild(

                 this._createCornerSlice(color, bgColor, i, "top")

             );

         }

         el.style.paddingTop = 0;

         el.insertBefore(corner, el.firstChild);

     },

     _roundBottomCorners: function (el, color, bgColor) {

         var corner = this._createCorner(bgColor);

         for (var i = (this.options.numSlices - 1); i >= 0; i--) {

             corner.appendChild(

                 this._createCornerSlice(color, bgColor, i, "bottom")

             );

         }

         el.style.paddingBottom = 0;

         el.appendChild(corner);

     },

     _createCorner: function (bgColor) {

         var dom = MochiKit.DOM;

         return dom.DIV({style: {backgroundColor: bgColor.toString()}});

     },

     _createCornerSlice: function (color, bgColor, n, position) {

         var slice = MochiKit.DOM.SPAN();

         var inStyle = slice.style;

         inStyle.backgroundColor = color.toString();

         inStyle.display = "block";

         inStyle.height = "1px";

         inStyle.overflow = "hidden";

         inStyle.fontSize = "1px";

         var borderColor = this._borderColor(color, bgColor);

         if (this.options.border && n === 0) {

             inStyle.borderTopStyle = "solid";

             inStyle.borderTopWidth = "1px";

             inStyle.borderLeftWidth = "0px";

             inStyle.borderRightWidth = "0px";

             inStyle.borderBottomWidth = "0px";

             // assumes css compliant box model

             inStyle.height = "0px";

             inStyle.borderColor = borderColor.toString();

         } else if (borderColor) {

             inStyle.borderColor = borderColor.toString();

             inStyle.borderStyle = "solid";

             inStyle.borderWidth = "0px 1px";

         }

         if (!this.options.compact && (n == (this.options.numSlices - 1))) {

             inStyle.height = "2px";

         }

         this._setMargin(slice, n, position);

         this._setBorder(slice, n, position);

         return slice;

     },

     _setOptions: function (options) {

         this.options = {

             corners: "all",

             color: "fromElement",

             bgColor: "fromParent",

             blend: true,

             border: false,

             compact: false,

             __unstable__wrapElement: false

         };

         MochiKit.Base.update(this.options, options);

         this.options.numSlices = (this.options.compact ? 2 : 4);

     },

     _whichSideTop: function () {

         var corners = this.options.corners;

         if (this._hasString(corners, "all", "top")) {

             return "";

         }

         var has_tl = (corners.indexOf("tl") != -1);

         var has_tr = (corners.indexOf("tr") != -1);

         if (has_tl && has_tr) {

             return "";

         }

         if (has_tl) {

             return "left";

         }

         if (has_tr) {

             return "right";

         }

         return "";

     },

     _whichSideBottom: function () {

         var corners = this.options.corners;

         if (this._hasString(corners, "all", "bottom")) {

             return "";

         }

         var has_bl = (corners.indexOf('bl') != -1);

         var has_br = (corners.indexOf('br') != -1);

         if (has_bl && has_br) {

             return "";

         }

         if (has_bl) {

             return "left";

         }

         if (has_br) {

             return "right";

         }

         return "";

     },

     _borderColor: function (color, bgColor) {

         if (color == "transparent") {

             return bgColor;

         } else if (this.options.border) {

             return this.options.border;

         } else if (this.options.blend) {

             return bgColor.blendedColor(color);

         }

         return "";

     },

     _setMargin: function (el, n, corners) {

         var marginSize = this._marginSize(n) + "px";

         var whichSide = (

             corners == "top" ? this._whichSideTop() : this._whichSideBottom()

         );

         var style = el.style;

         if (whichSide == "left") {

             style.marginLeft = marginSize;

             style.marginRight = "0px";

         } else if (whichSide == "right") {

             style.marginRight = marginSize;

             style.marginLeft = "0px";

         } else {

             style.marginLeft = marginSize;

             style.marginRight = marginSize;

         }

     },

     _setBorder: function (el, n, corners) {

         var borderSize = this._borderSize(n) + "px";

         var whichSide = (

             corners == "top" ? this._whichSideTop() : this._whichSideBottom()

         );

         var style = el.style;

         if (whichSide == "left") {

             style.borderLeftWidth = borderSize;

             style.borderRightWidth = "0px";

         } else if (whichSide == "right") {

             style.borderRightWidth = borderSize;

             style.borderLeftWidth = "0px";

         } else {

             style.borderLeftWidth = borderSize;

             style.borderRightWidth = borderSize;

         }

     },

     _marginSize: function (n) {

         if (this.isTransparent) {

             return 0;

         }

         var o = this.options;

         if (o.compact && o.blend) {

             var smBlendedMarginSizes = [1, 0];

             return smBlendedMarginSizes[n];

         } else if (o.compact) {

             var compactMarginSizes = [2, 1];

             return compactMarginSizes[n];

         } else if (o.blend) {

             var blendedMarginSizes = [3, 2, 1, 0];

             return blendedMarginSizes[n];

         } else {

             var marginSizes = [5, 3, 2, 1];

             return marginSizes[n];

         }

     },

     _borderSize: function (n) {

         var o = this.options;

         var borderSizes;

         if (o.compact && (o.blend || this.isTransparent)) {

             return 1;

         } else if (o.compact) {

             borderSizes = [1, 0];

         } else if (o.blend) {

             borderSizes = [2, 1, 1, 1];

         } else if (o.border) {

             borderSizes = [0, 2, 0, 0];

         } else if (this.isTransparent) {

             borderSizes = [5, 3, 2, 1];

         } else {

             return 0;

         }

         return borderSizes[n];

     },

     _hasString: function (str) {

         for (var i = 1; i< arguments.length; i++) {

             if (str.indexOf(arguments[i]) != -1) {

                 return true;

             }

         }

         return false;

     },

     _isTopRounded: function () {

         return this._hasString(this.options.corners,

             "all", "top", "tl", "tr"

         );

     },

     _isBottomRounded: function () {

         return this._hasString(this.options.corners,

             "all", "bottom", "bl", "br"

         );

     },

     _hasSingleTextChild: function (el) {

         return (el.childNodes.length == 1 && el.childNodes[0].nodeType == 3);

     }

 };

 /** @id MochiKit.Visual.roundElement */

 MochiKit.Visual.roundElement = function (e, options) {

     new MochiKit.Visual._RoundCorners(e, options);

 };

 /** @id MochiKit.Visual.roundClass */

 MochiKit.Visual.roundClass = function (tagName, className, options) {

     var elements = MochiKit.DOM.getElementsByTagAndClassName(

         tagName, className

     );

     for (var i = 0; i < elements.length; i++) {

         MochiKit.Visual.roundElement(elements[i], options);

     }

 };

 /** @id MochiKit.Visual.tagifyText */

 MochiKit.Visual.tagifyText = function (element, /* optional */tagifyStyle) {

     /***

     Change a node text to character in tags.

     @param tagifyStyle: the style to apply to character nodes, default to

     'position: relative'.

     ***/

     var tagifyStyle = tagifyStyle || 'position:relative';

     if (/MSIE/.test(navigator.userAgent)) {

         tagifyStyle += ';zoom:1';

     }

     element = MochiKit.DOM.getElement(element);

     var ma = MochiKit.Base.map;

     ma(function (child) {

         if (child.nodeType == 3) {

             ma(function (character) {

                 element.insertBefore(

                     MochiKit.DOM.SPAN({style: tagifyStyle},

                         character == ' ' ? String.fromCharCode(160) : character), child);

             }, child.nodeValue.split(''));

             MochiKit.DOM.removeElement(child);

         }

     }, element.childNodes);

 };

 /** @id MochiKit.Visual.forceRerendering */

 MochiKit.Visual.forceRerendering = function (element) {

     try {

         element = MochiKit.DOM.getElement(element);

         var n = document.createTextNode(' ');

         element.appendChild(n);

         element.removeChild(n);

     } catch(e) {

     }

 };

 /** @id MochiKit.Visual.multiple */

 MochiKit.Visual.multiple = function (elements, effect, /* optional */options) {

     /***

     Launch the same effect subsequently on given elements.

     ***/

     options = MochiKit.Base.update({

         speed: 0.1, delay: 0.0

     }, options || {});

     var masterDelay = options.delay;

     var index = 0;

     MochiKit.Base.map(function (innerelement) {

         options.delay = index * options.speed + masterDelay;

         new effect(innerelement, options);

         index += 1;

     }, elements);

 };

 MochiKit.Visual.PAIRS = {

     'slide': ['slideDown', 'slideUp'],

     'blind': ['blindDown', 'blindUp'],

     'appear': ['appear', 'fade'],

     'size': ['grow', 'shrink']

 };

 /** @id MochiKit.Visual.toggle */

 MochiKit.Visual.toggle = function (element, /* optional */effect, /* optional */options) {

     /***

     Toggle an item between two state depending of its visibility, making

     a effect between these states. Default  effect is 'appear', can be

     'slide' or 'blind'.

     ***/

     element = MochiKit.DOM.getElement(element);

     effect = (effect || 'appear').toLowerCase();

     options = MochiKit.Base.update({

         queue: {position: 'end', scope: (element.id || 'global'), limit: 1}

     }, options || {});

     var v = MochiKit.Visual;

     v[element.style.display != 'none' ?

       v.PAIRS[effect][1] : v.PAIRS[effect][0]](element, options);

 };

 /***

 Transitions: define functions calculating variations depending of a position.

 ***/

 MochiKit.Visual.Transitions = {}

 /** @id MochiKit.Visual.Transitions.linear */

 MochiKit.Visual.Transitions.linear = function (pos) {

     return pos;

 };

 /** @id MochiKit.Visual.Transitions.sinoidal */

 MochiKit.Visual.Transitions.sinoidal = function (pos) {

     return (-Math.cos(pos*Math.PI)/2) + 0.5;

 };

 /** @id MochiKit.Visual.Transitions.reverse */

 MochiKit.Visual.Transitions.reverse = function (pos) {

     return 1 - pos;

 };

 /** @id MochiKit.Visual.Transitions.flicker */

 MochiKit.Visual.Transitions.flicker = function (pos) {

     return ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random()/4;

 };

 /** @id MochiKit.Visual.Transitions.wobble */

 MochiKit.Visual.Transitions.wobble = function (pos) {

     return (-Math.cos(pos*Math.PI*(9*pos))/2) + 0.5;

 };

 /** @id MochiKit.Visual.Transitions.pulse */

 MochiKit.Visual.Transitions.pulse = function (pos) {

     return (Math.floor(pos*10) % 2 == 0 ?

         (pos*10 - Math.floor(pos*10)) : 1 - (pos*10 - Math.floor(pos*10)));

 };

 /** @id MochiKit.Visual.Transitions.none */

 MochiKit.Visual.Transitions.none = function (pos) {

     return 0;

 };

 /** @id MochiKit.Visual.Transitions.full */

 MochiKit.Visual.Transitions.full = function (pos) {

     return 1;

 };

 /***

 Core effects

 ***/

 MochiKit.Visual.ScopedQueue = function () {

     this.__init__();

 };

 MochiKit.Base.update(MochiKit.Visual.ScopedQueue.prototype, {

     __init__: function () {

         this.effects = [];

         this.interval = null;

     },

     /** @id MochiKit.Visual.ScopedQueue.prototype.add */

     add: function (effect) {

         var timestamp = new Date().getTime();

         var position = (typeof(effect.options.queue) == 'string') ?

             effect.options.queue : effect.options.queue.position;

         var ma = MochiKit.Base.map;

         switch (position) {

             case 'front':

                 // move unstarted effects after this effect

                 ma(function (e) {

                     if (e.state == 'idle') {

                         e.startOn += effect.finishOn;

                         e.finishOn += effect.finishOn;

                     }

                 }, this.effects);

                 break;

             case 'end':

                 var finish;

                 // start effect after last queued effect has finished

                 ma(function (e) {

                     var i = e.finishOn;

                     if (i >= (finish || i)) {

                         finish = i;

                     }

                 }, this.effects);

                 timestamp = finish || timestamp;

                 break;

             case 'break':

                 ma(function (e) {

                     e.finalize();

                 }, this.effects);

                 break;

         }

         effect.startOn += timestamp;

         effect.finishOn += timestamp;

         if (!effect.options.queue.limit ||

             this.effects.length < effect.options.queue.limit) {

             this.effects.push(effect);

         }

         if (!this.interval) {

             this.interval = this.startLoop(MochiKit.Base.bind(this.loop, this),

                                         40);

         }

     },

     /** @id MochiKit.Visual.ScopedQueue.prototype.startLoop */

     startLoop: function (func, interval) {

         return setInterval(func, interval)

     },

     /** @id MochiKit.Visual.ScopedQueue.prototype.remove */

     remove: function (effect) {

         this.effects = MochiKit.Base.filter(function (e) {

             return e != effect;

         }, this.effects);

         if (this.effects.length == 0) {

             this.stopLoop(this.interval);

             this.interval = null;

         }

     },

     /** @id MochiKit.Visual.ScopedQueue.prototype.stopLoop */

     stopLoop: function (interval) {

         clearInterval(interval)

     },

     /** @id MochiKit.Visual.ScopedQueue.prototype.loop */

     loop: function () {

         var timePos = new Date().getTime();

         MochiKit.Base.map(function (effect) {

             effect.loop(timePos);

         }, this.effects);

     }

 });

 MochiKit.Visual.Queues = {

     instances: {},

     get: function (queueName) {

         if (typeof(queueName) != 'string') {

             return queueName;

         }

         if (!this.instances[queueName]) {

             this.instances[queueName] = new MochiKit.Visual.ScopedQueue();

         }

         return this.instances[queueName];

     }

 };

 MochiKit.Visual.Queue = MochiKit.Visual.Queues.get('global');

 MochiKit.Visual.DefaultOptions = {

     transition: MochiKit.Visual.Transitions.sinoidal,

     duration: 1.0,  // seconds

     fps: 25.0,  // max. 25fps due to MochiKit.Visual.Queue implementation

     sync: false,  // true for combining

     from: 0.0,

     to: 1.0,

     delay: 0.0,

     queue: 'parallel'

 };

 MochiKit.Visual.Base = function () {};

 MochiKit.Visual.Base.prototype = {

     /***

     Basic class for all Effects. Define a looping mechanism called for each step

     of an effect. Don't instantiate it, only subclass it.

     ***/

     __class__ : MochiKit.Visual.Base,

     /** @id MochiKit.Visual.Base.prototype.start */

     start: function (options) {

         var v = MochiKit.Visual;

         this.options = MochiKit.Base.setdefault(options || {},

                                                 v.DefaultOptions);

         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) {

             v.Queues.get(typeof(this.options.queue) == 'string' ?

                 'global' : this.options.queue.scope).add(this);

         }

     },

     /** @id MochiKit.Visual.Base.prototype.loop */

     loop: function (timePos) {

         if (timePos >= this.startOn) {

             if (timePos >= this.finishOn) {

                 return this.finalize();

             }

             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;

             }

         }

     },

     /** @id MochiKit.Visual.Base.prototype.render */

     render: function (pos) {

         if (this.state == 'idle') {

             this.state = 'running';

             this.event('beforeSetup');

             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.event('beforeUpdate');

             this.update(pos);

             this.event('afterUpdate');

         }

     },

     /** @id MochiKit.Visual.Base.prototype.cancel */

     cancel: function () {

         if (!this.options.sync) {

             MochiKit.Visual.Queues.get(typeof(this.options.queue) == 'string' ?

                 'global' : this.options.queue.scope).remove(this);

         }

         this.state = 'finished';

     },

     /** @id MochiKit.Visual.Base.prototype.finalize */

     finalize: function () {

         this.render(1.0);

         this.cancel();

         this.event('beforeFinish');

         this.finish();

         this.event('afterFinish');

     },

     setup: function () {

     },

     finish: function () {

     },

     update: function (position) {

     },

     /** @id MochiKit.Visual.Base.prototype.event */

     event: function (eventName) {

         if (this.options[eventName + 'Internal']) {

             this.options[eventName + 'Internal'](this);

         }

         if (this.options[eventName]) {

             this.options[eventName](this);

         }

     },

     /** @id MochiKit.Visual.Base.prototype.repr */

     repr: function () {

         return '[' + this.__class__.NAME + ', options:' +

                MochiKit.Base.repr(this.options) + ']';

     }

 }

     /** @id MochiKit.Visual.Parallel */

 MochiKit.Visual.Parallel = function (effects, options) {

     this.__init__(effects, options);

 };

 MochiKit.Visual.Parallel.prototype = new MochiKit.Visual.Base();

 MochiKit.Base.update(MochiKit.Visual.Parallel.prototype, {

     /***

     Run multiple effects at the same time.

     ***/

     __init__: function (effects, options) {

         this.effects = effects || [];

         this.start(options);

     },

     /** @id MochiKit.Visual.Parallel.prototype.update */

     update: function (position) {

         MochiKit.Base.map(function (effect) {

             effect.render(position);

         }, this.effects);

     },

     /** @id MochiKit.Visual.Parallel.prototype.finish */

     finish: function () {

         MochiKit.Base.map(function (effect) {

             effect.finalize();

         }, this.effects);

     }

 });

 /** @id MochiKit.Visual.Opacity */

 MochiKit.Visual.Opacity = function (element, options) {

     this.__init__(element, options);

 };

 MochiKit.Visual.Opacity.prototype = new MochiKit.Visual.Base();

 MochiKit.Base.update(MochiKit.Visual.Opacity.prototype, {

     /***

     Change the opacity of an element.

     @param options: 'from' and 'to' change the starting and ending opacities.

     Must be between 0.0 and 1.0. Default to current opacity and 1.0.

     ***/

     __init__: function (element, /* optional */options) {

         var b = MochiKit.Base;

         var s = MochiKit.Style;

         this.element = MochiKit.DOM.getElement(element);

         // make this work on IE on elements without 'layout'

         if (this.element.currentStyle &&

             (!this.element.currentStyle.hasLayout)) {

             s.setStyle(this.element, {zoom: 1});

         }

         options = b.update({

             from: s.getOpacity(this.element) || 0.0,

             to: 1.0

         }, options || {});

         this.start(options);

     },

     /** @id MochiKit.Visual.Opacity.prototype.update */

     update: function (position) {

         MochiKit.Style.setOpacity(this.element, position);

     }

 });

 /**  @id MochiKit.Visual.Opacity.prototype.Move */

 MochiKit.Visual.Move = function (element, options) {

     this.__init__(element, options);

 };

 MochiKit.Visual.Move.prototype = new MochiKit.Visual.Base();

 MochiKit.Base.update(MochiKit.Visual.Move.prototype, {

     /***

     Move an element between its current position to a defined position

     @param options: 'x' and 'y' for final positions, default to 0, 0.

     ***/

     __init__: function (element, /* optional */options) {

         this.element = MochiKit.DOM.getElement(element);

         options = MochiKit.Base.update({

             x: 0,

             y: 0,

             mode: 'relative'

         }, options || {});

         this.start(options);

     },

     /** @id MochiKit.Visual.Move.prototype.setup */

     setup: function () {

         // Bug in Opera: Opera returns the 'real' position of a static element

         // or relative element that does not have top/left explicitly set.

         // ==> Always set top and left for position relative elements in your

         // stylesheets (to 0 if you do not need them)

         MochiKit.DOM.makePositioned(this.element);

         var s = this.element.style;

         var originalVisibility = s.visibility;

         var originalDisplay = s.display;

         if (originalDisplay == 'none') {

             s.visibility = 'hidden';

             s.display = '';

         }

         this.originalLeft = parseFloat(MochiKit.Style.getStyle(this.element, 'left') || '0');

         this.originalTop = parseFloat(MochiKit.Style.getStyle(this.element, 'top') || '0');

         if (this.options.mode == 'absolute') {

             // absolute movement, so we need to calc deltaX and deltaY

             this.options.x -= this.originalLeft;

             this.options.y -= this.originalTop;

         }

         if (originalDisplay == 'none') {

             s.visibility = originalVisibility;

             s.display = originalDisplay;

         }

     },

     /** @id MochiKit.Visual.Move.prototype.update */

     update: function (position) {

         MochiKit.Style.setStyle(this.element, {

             left: Math.round(this.options.x * position + this.originalLeft) + 'px',

             top: Math.round(this.options.y * position + this.originalTop) + 'px'

         });

     }

 });

 /** @id MochiKit.Visual.Scale */

 MochiKit.Visual.Scale = function (element, percent, options) {

     this.__init__(element, percent, options);

 };

 MochiKit.Visual.Scale.prototype = new MochiKit.Visual.Base();

 MochiKit.Base.update(MochiKit.Visual.Scale.prototype, {

     /***

     Change the size of an element.

     @param percent: final_size = percent*original_size

     @param options: several options changing scale behaviour

     ***/

     __init__: function (element, percent, /* optional */options) {

         this.element = MochiKit.DOM.getElement(element)

         options = MochiKit.Base.update({

             scaleX: true,

             scaleY: true,

             scaleContent: true,

             scaleFromCenter: false,

             scaleMode: 'box',  // 'box' or 'contents' or {} with provided values

             scaleFrom: 100.0,

             scaleTo: percent

         }, options || {});

         this.start(options);

     },

     /** @id MochiKit.Visual.Scale.prototype.setup */

     setup: function () {

         this.restoreAfterFinish = this.options.restoreAfterFinish || false;

         this.elementPositioning = MochiKit.Style.getStyle(this.element,

                                                         'position');

         var ma = MochiKit.Base.map;

         var b = MochiKit.Base.bind;

         this.originalStyle = {};

         ma(b(function (k) {

                 this.originalStyle[k] = this.element.style[k];

             }, this), ['top', 'left', 'width', 'height', 'fontSize']);

         this.originalTop = this.element.offsetTop;

         this.originalLeft = this.element.offsetLeft;

         var fontSize = MochiKit.Style.getStyle(this.element,

                                              'font-size') || '100%';

         ma(b(function (fontSizeType) {

             if (fontSize.indexOf(fontSizeType) > 0) {

                 this.fontSize = parseFloat(fontSize);

                 this.fontSizeType = fontSizeType;

             }

         }, this), ['em', 'px', '%']);

         this.factor = (this.options.scaleTo - this.options.scaleFrom)/100;

         if (/^content/.test(this.options.scaleMode)) {

             this.dims = [this.element.scrollHeight, this.element.scrollWidth];

         } else if (this.options.scaleMode == 'box') {

             this.dims = [this.element.offsetHeight, this.element.offsetWidth];

         } else {

             this.dims = [this.options.scaleMode.originalHeight,

                          this.options.scaleMode.originalWidth];

         }

     },

     /** @id MochiKit.Visual.Scale.prototype.update */

     update: function (position) {

         var currentScale = (this.options.scaleFrom/100.0) +

                            (this.factor * position);

         if (this.options.scaleContent && this.fontSize) {

             MochiKit.Style.setStyle(this.element, {

                 fontSize: this.fontSize * currentScale + this.fontSizeType

             });

         }

         this.setDimensions(this.dims[0] * currentScale,

                            this.dims[1] * currentScale);

     },

     /** @id MochiKit.Visual.Scale.prototype.finish */

     finish: function () {

         if (this.restoreAfterFinish) {

             MochiKit.Style.setStyle(this.element, this.originalStyle);

         }

     },

     /** @id MochiKit.Visual.Scale.prototype.setDimensions */

     setDimensions: function (height, width) {

         var d = {};

         var r = Math.round;

         if (/MSIE/.test(navigator.userAgent)) {

             r = Math.ceil;

         }

         if (this.options.scaleX) {

             d.width = r(width) + 'px';

         }

         if (this.options.scaleY) {

             d.height = r(height) + 'px';

         }

         if (this.options.scaleFromCenter) {

             var topd = (height - this.dims[0])/2;

             var leftd = (width - this.dims[1])/2;

             if (this.elementPositioning == 'absolute') {

                 if (this.options.scaleY) {

                     d.top = this.originalTop - topd + 'px';

                 }

                 if (this.options.scaleX) {

                     d.left = this.originalLeft - leftd + 'px';

                 }

             } else {

                 if (this.options.scaleY) {

                     d.top = -topd + 'px';

                 }

                 if (this.options.scaleX) {

                     d.left = -leftd + 'px';

                 }

             }

         }

         MochiKit.Style.setStyle(this.element, d);

     }

 });

 /** @id MochiKit.Visual.Highlight */

 MochiKit.Visual.Highlight = function (element, options) {

     this.__init__(element, options);

 };

 MochiKit.Visual.Highlight.prototype = new MochiKit.Visual.Base();

 MochiKit.Base.update(MochiKit.Visual.Highlight.prototype, {

     /***

     Highlight an item of the page.

     @param options: 'startcolor' for choosing highlighting color, default

     to '#ffff99'.

     ***/

     __init__: function (element, /* optional */options) {

         this.element = MochiKit.DOM.getElement(element);

         options = MochiKit.Base.update({

             startcolor: '#ffff99'

         }, options || {});

         this.start(options);

     },

     /** @id MochiKit.Visual.Highlight.prototype.setup */

     setup: function () {

         var b = MochiKit.Base;

         var s = MochiKit.Style;

         // Prevent executing on elements not in the layout flow

         if (s.getStyle(this.element, 'display') == 'none') {

             this.cancel();

             return;

         }

         // Disable background image during the effect

         this.oldStyle = {

             backgroundImage: s.getStyle(this.element, 'background-image')

         };

         s.setStyle(this.element, {

             backgroundImage: 'none'

         });

         if (!this.options.endcolor) {

             this.options.endcolor =

                 MochiKit.Color.Color.fromBackground(this.element).toHexString();

         }

         if (b.isUndefinedOrNull(this.options.restorecolor)) {

             this.options.restorecolor = s.getStyle(this.element,

                                                    'background-color');

         }

         // init color calculations

         this._base = b.map(b.bind(function (i) {

             return parseInt(

                 this.options.startcolor.slice(i*2 + 1, i*2 + 3), 16);

         }, this), [0, 1, 2]);

         this._delta = b.map(b.bind(function (i) {

             return parseInt(this.options.endcolor.slice(i*2 + 1, i*2 + 3), 16)

                 - this._base[i];

         }, this), [0, 1, 2]);

     },

     /** @id MochiKit.Visual.Highlight.prototype.update */

     update: function (position) {

         var m = '#';

         MochiKit.Base.map(MochiKit.Base.bind(function (i) {

             m += MochiKit.Color.toColorPart(Math.round(this._base[i] +

                                             this._delta[i]*position));

         }, this), [0, 1, 2]);

         MochiKit.Style.setStyle(this.element, {

             backgroundColor: m

         });

     },

     /** @id MochiKit.Visual.Highlight.prototype.finish */

     finish: function () {

         MochiKit.Style.setStyle(this.element,

             MochiKit.Base.update(this.oldStyle, {

                 backgroundColor: this.options.restorecolor

         }));

     }

 });

 /** @id MochiKit.Visual.ScrollTo */

 MochiKit.Visual.ScrollTo = function (element, options) {

     this.__init__(element, options);

 };

 MochiKit.Visual.ScrollTo.prototype = new MochiKit.Visual.Base();

 MochiKit.Base.update(MochiKit.Visual.ScrollTo.prototype, {

     /***

     Scroll to an element in the page.

     ***/

     __init__: function (element, /* optional */options) {

         this.element = MochiKit.DOM.getElement(element);

         this.start(options || {});

     },

     /** @id MochiKit.Visual.ScrollTo.prototype.setup */

     setup: function () {

         var p = MochiKit.Position;

         p.prepare();

         var offsets = p.cumulativeOffset(this.element);

         if (this.options.offset) {

             offsets.y += this.options.offset;

         }

         var max;

         if (window.innerHeight) {

             max = window.innerHeight - window.height;

         } else if (document.documentElement &&

                    document.documentElement.clientHeight) {

             max = document.documentElement.clientHeight -

                   document.body.scrollHeight;

         } else if (document.body) {

             max = document.body.clientHeight - document.body.scrollHeight;

         }

         this.scrollStart = p.windowOffset.y;

         this.delta = (offsets.y > max ? max : offsets.y) - this.scrollStart;

     },

     /** @id MochiKit.Visual.ScrollTo.prototype.update */

     update: function (position) {

         var p = MochiKit.Position;

         p.prepare();

         window.scrollTo(p.windowOffset.x, this.scrollStart + (position * this.delta));

     }

 });

 /***

 Combination effects.

 ***/

 /** @id MochiKit.Visual.fade */

 MochiKit.Visual.fade = function (element, /* optional */ options) {

     /***

     Fade a given element: change its opacity and hide it in the end.

     @param options: 'to' and 'from' to change opacity.

     ***/

     var s = MochiKit.Style;

     var oldOpacity = MochiKit.DOM.getElement(element).style.opacity || '';

     options = MochiKit.Base.update({

         from: s.getOpacity(element) || 1.0,

         to: 0.0,

         afterFinishInternal: function (effect) {

             if (effect.options.to !== 0) {

                 return;

             }

             s.hideElement(effect.element);

             s.setStyle(effect.element, {opacity: oldOpacity});

         }

     }, options || {});

     return new MochiKit.Visual.Opacity(element, options);

 };

 /** @id MochiKit.Visual.appear */

 MochiKit.Visual.appear = function (element, /* optional */ options) {

     /***

     Make an element appear.

     @param options: 'to' and 'from' to change opacity.

     ***/

     var s = MochiKit.Style;

     var v = MochiKit.Visual;

     options = MochiKit.Base.update({

         from: (s.getStyle(element, 'display') == 'none' ? 0.0 :

                s.getOpacity(element) || 0.0),

         to: 1.0,

         // force Safari to render floated elements properly

         afterFinishInternal: function (effect) {

             v.forceRerendering(effect.element);

         },

         beforeSetupInternal: function (effect) {

             s.setOpacity(effect.element, effect.options.from);

             s.showElement(effect.element);

         }

     }, options || {});

     return new v.Opacity(element, options);

 };

 /** @id MochiKit.Visual.puff */

 MochiKit.Visual.puff = function (element, /* optional */ options) {

     /***

     'Puff' an element: grow it to double size, fading it and make it hidden.

     ***/

     var s = MochiKit.Style;

     var v = MochiKit.Visual;

     element = MochiKit.DOM.getElement(element);

     var oldStyle = {

         opacity: element.style.opacity || '',

         position: s.getStyle(element, 'position'),

         top: element.style.top,

         left: element.style.left,

         width: element.style.width,

         height: element.style.height

     };

     options = MochiKit.Base.update({

         beforeSetupInternal: function (effect) {

             MochiKit.Position.absolutize(effect.effects[0].element)

         },

         afterFinishInternal: function (effect) {

             s.hideElement(effect.effects[0].element);

             s.setStyle(effect.effects[0].element, oldStyle);

         }

     }, options || {});

     return new v.Parallel(

         [new v.Scale(element, 200,

             {sync: true, scaleFromCenter: true,

              scaleContent: true, restoreAfterFinish: true}),

          new v.Opacity(element, {sync: true, to: 0.0 })],

         options);

 };

 /** @id MochiKit.Visual.blindUp */

 MochiKit.Visual.blindUp = function (element, /* optional */ options) {

     /***

     Blind an element up: change its vertical size to 0.

     ***/

     var d = MochiKit.DOM;

     element = d.getElement(element);

     var elemClip = d.makeClipping(element);

     options = MochiKit.Base.update({

         scaleContent: false,

         scaleX: false,

         restoreAfterFinish: true,

         afterFinishInternal: function (effect) {

             MochiKit.Style.hideElement(effect.element);

             d.undoClipping(effect.element, elemClip);

         }

     }, options || {});

     return new MochiKit.Visual.Scale(element, 0, options);

 };

 /** @id MochiKit.Visual.blindDown */

 MochiKit.Visual.blindDown = function (element, /* optional */ options) {

     /***

     Blind an element down: restore its vertical size.

     ***/

     var d = MochiKit.DOM;

     var s = MochiKit.Style;

     element = d.getElement(element);

     var elementDimensions = s.getElementDimensions(element);

     var elemClip;

     options = MochiKit.Base.update({

         scaleContent: false,

         scaleX: false,

         scaleFrom: 0,

         scaleMode: {originalHeight: elementDimensions.h,

                     originalWidth: elementDimensions.w},

         restoreAfterFinish: true,

         afterSetupInternal: function (effect) {

             elemClip = d.makeClipping(effect.element);

             s.setStyle(effect.element, {height: '0px'});

             s.showElement(effect.element);

         },

         afterFinishInternal: function (effect) {

             d.undoClipping(effect.element, elemClip);

         }

     }, options || {});

     return new MochiKit.Visual.Scale(element, 100, options);

 };

 /** @id MochiKit.Visual.switchOff */

 MochiKit.Visual.switchOff = function (element, /* optional */ options) {

     /***

     Apply a switch-off-like effect.

     ***/

     var d = MochiKit.DOM;

     element = d.getElement(element);

     var oldOpacity = element.style.opacity || '';

     var elemClip;

     var options = MochiKit.Base.update({

         duration: 0.3,

         scaleFromCenter: true,

         scaleX: false,

         scaleContent: false,

         restoreAfterFinish: true,

         beforeSetupInternal: function (effect) {

             d.makePositioned(effect.element);

             elemClip = d.makeClipping(effect.element);

         },

         afterFinishInternal: function (effect) {

             MochiKit.Style.hideElement(effect.element);

             d.undoClipping(effect.element, elemClip);

             d.undoPositioned(effect.element);

             MochiKit.Style.setStyle(effect.element, {opacity: oldOpacity});

         }

     }, options || {});

     var v = MochiKit.Visual;

     return new v.appear(element, {

         duration: 0.4,

         from: 0,

         transition: v.Transitions.flicker,

         afterFinishInternal: function (effect) {

             new v.Scale(effect.element, 1, options)

         }

     });

 };

 /** @id MochiKit.Visual.dropOut */

 MochiKit.Visual.dropOut = function (element, /* optional */ options) {

     /***

     Make an element fall and disappear.

     ***/

     var d = MochiKit.DOM;

     var s = MochiKit.Style;

     element = d.getElement(element);

     var oldStyle = {

         top: s.getStyle(element, 'top'),

         left: s.getStyle(element, 'left'),

         opacity: element.style.opacity || ''

     };

     options = MochiKit.Base.update({

         duration: 0.5,

         beforeSetupInternal: function (effect) {

             d.makePositioned(effect.effects[0].element);

         },

         afterFinishInternal: function (effect) {

             s.hideElement(effect.effects[0].element);

             d.undoPositioned(effect.effects[0].element);

             s.setStyle(effect.effects[0].element, oldStyle);

         }

     }, options || {});

     var v = MochiKit.Visual;

     return new v.Parallel(

         [new v.Move(element, {x: 0, y: 100, sync: true}),

          new v.Opacity(element, {sync: true, to: 0.0})],

         options);

 };

 /** @id MochiKit.Visual.shake */

 MochiKit.Visual.shake = function (element, /* optional */ options) {

     /***

     Move an element from left to right several times.

     ***/

     var d = MochiKit.DOM;

     var v = MochiKit.Visual;

     var s = MochiKit.Style;

     element = d.getElement(element);

     options = MochiKit.Base.update({

         x: -20,

         y: 0,

         duration: 0.05,

         afterFinishInternal: function (effect) {

             d.undoPositioned(effect.element);

             s.setStyle(effect.element, oldStyle);

         }

     }, options || {});

     var oldStyle = {

         top: s.getStyle(element, 'top'),

         left: s.getStyle(element, 'left') };

         return new v.Move(element,

           {x: 20, y: 0, duration: 0.05, afterFinishInternal: function (effect) {

         new v.Move(effect.element,

           {x: -40, y: 0, duration: 0.1, afterFinishInternal: function (effect) {

         new v.Move(effect.element,

            {x: 40, y: 0, duration: 0.1, afterFinishInternal: function (effect) {

         new v.Move(effect.element,

           {x: -40, y: 0, duration: 0.1, afterFinishInternal: function (effect) {

         new v.Move(effect.element,

            {x: 40, y: 0, duration: 0.1, afterFinishInternal: function (effect) {

         new v.Move(effect.element, options

         ) }}) }}) }}) }}) }});

 };

 /** @id MochiKit.Visual.slideDown */

 MochiKit.Visual.slideDown = function (element, /* optional */ options) {

     /***

     Slide an element down.

     It needs to have the content of the element wrapped in a container

     element with fixed height.

     ***/

     var d = MochiKit.DOM;

     var b = MochiKit.Base;

     var s = MochiKit.Style;

     element = d.getElement(element);

     if (!element.firstChild) {

         throw "MochiKit.Visual.slideDown must be used on a element with a child";

     }

     d.removeEmptyTextNodes(element);

     var oldInnerBottom = s.getStyle(element.firstChild, 'bottom') || 0;

     var elementDimensions = s.getElementDimensions(element);

     var elemClip;

     options = b.update({

         scaleContent: false,

         scaleX: false,

         scaleFrom: 0,

         scaleMode: {originalHeight: elementDimensions.h,

                     originalWidth: elementDimensions.w},

         restoreAfterFinish: true,

         afterSetupInternal: function (effect) {

             d.makePositioned(effect.element);

             d.makePositioned(effect.element.firstChild);

             if (/Opera/.test(navigator.userAgent)) {

                 s.setStyle(effect.element, {top: ''});

             }

             elemClip = d.makeClipping(effect.element);

             s.setStyle(effect.element, {height: '0px'});

             s.showElement(effect.element);

         },

         afterUpdateInternal: function (effect) {

             s.setStyle(effect.element.firstChild,

                {bottom: (effect.dims[0] - effect.element.clientHeight) + 'px'})

         },

         afterFinishInternal: function (effect) {

             d.undoClipping(effect.element, elemClip);

             // IE will crash if child is undoPositioned first

             if (/MSIE/.test(navigator.userAgent)) {

                 d.undoPositioned(effect.element);

                 d.undoPositioned(effect.element.firstChild);

             } else {

                 d.undoPositioned(effect.element.firstChild);

                 d.undoPositioned(effect.element);

             }

             s.setStyle(effect.element.firstChild,

                                   {bottom: oldInnerBottom});

         }

     }, options || {});

     return new MochiKit.Visual.Scale(element, 100, options);

 };

 /** @id MochiKit.Visual.slideUp */

 MochiKit.Visual.slideUp = function (element, /* optional */ options) {

     /***

     Slide an element up.

     It needs to have the content of the element wrapped in a container

     element with fixed height.

     ***/

     var d = MochiKit.DOM;

     var b = MochiKit.Base;

     var s = MochiKit.Style;

     element = d.getElement(element);

     if (!element.firstChild) {

         throw "MochiKit.Visual.slideUp must be used on a element with a child";

     }

     d.removeEmptyTextNodes(element);

     var oldInnerBottom = s.getStyle(element.firstChild, 'bottom');

     var elemClip;

     options = b.update({

         scaleContent: false,

         scaleX: false,

         scaleMode: 'box',

         scaleFrom: 100,

         restoreAfterFinish: true,

         beforeStartInternal: function (effect) {

             d.makePositioned(effect.element);

             d.makePositioned(effect.element.firstChild);

             if (/Opera/.test(navigator.userAgent)) {

                 s.setStyle(effect.element, {top: ''});

             }

             elemClip = d.makeClipping(effect.element);

             s.showElement(effect.element);

         },

         afterUpdateInternal: function (effect) {

             s.setStyle(effect.element.firstChild,

             {bottom: (effect.dims[0] - effect.element.clientHeight) + 'px'});

         },

         afterFinishInternal: function (effect) {

             s.hideElement(effect.element);

             d.undoClipping(effect.element, elemClip);

             d.undoPositioned(effect.element.firstChild);

             d.undoPositioned(effect.element);

             s.setStyle(effect.element.firstChild, {bottom: oldInnerBottom});

         }

     }, options || {});

     return new MochiKit.Visual.Scale(element, 0, options);

 };

 // Bug in opera makes the TD containing this element expand for a instance

 // after finish

 /** @id MochiKit.Visual.squish */

 MochiKit.Visual.squish = function (element, /* optional */ options) {

     /***

     Reduce an element and make it disappear.

     ***/

     var d = MochiKit.DOM;

     var b = MochiKit.Base;

     var elemClip;

     options = b.update({

         restoreAfterFinish: true,

         beforeSetupInternal: function (effect) {

             elemClip = d.makeClipping(effect.element);

         },

         afterFinishInternal: function (effect) {

             MochiKit.Style.hideElement(effect.element);

             d.undoClipping(effect.element, elemClip);

         }

     }, options || {});

     return new MochiKit.Visual.Scale(element, /Opera/.test(navigator.userAgent) ? 1 : 0, options);

 };

 /** @id MochiKit.Visual.grow */

 MochiKit.Visual.grow = function (element, /* optional */ options) {

     /***

     Grow an element to its original size. Make it zero-sized before

     if necessary.

     ***/

     var d = MochiKit.DOM;

     var v = MochiKit.Visual;

     var s = MochiKit.Style;

     element = d.getElement(element);

     options = MochiKit.Base.update({

         direction: 'center',

         moveTransition: v.Transitions.sinoidal,

         scaleTransition: v.Transitions.sinoidal,

         opacityTransition: v.Transitions.full

     }, options || {});

     var oldStyle = {

         top: element.style.top,

         left: element.style.left,

         height: element.style.height,

         width: element.style.width,

         opacity: element.style.opacity || ''

     };

     var dims = s.getElementDimensions(element);

     var initialMoveX, initialMoveY;

     var moveX, moveY;

     switch (options.direction) {

         case 'top-left':

             initialMoveX = initialMoveY = moveX = moveY = 0;

             break;

         case 'top-right':

             initialMoveX = dims.w;

             initialMoveY = moveY = 0;

             moveX = -dims.w;

             break;

         case 'bottom-left':

             initialMoveX = moveX = 0;

             initialMoveY = dims.h;

             moveY = -dims.h;

             break;

         case 'bottom-right':

             initialMoveX = dims.w;

             initialMoveY = dims.h;

             moveX = -dims.w;

             moveY = -dims.h;

             break;

         case 'center':

             initialMoveX = dims.w / 2;

             initialMoveY = dims.h / 2;

             moveX = -dims.w / 2;

             moveY = -dims.h / 2;

             break;

     }

     var optionsParallel = MochiKit.Base.update({

         beforeSetupInternal: function (effect) {

             s.setStyle(effect.effects[0].element, {height: '0px'});

             s.showElement(effect.effects[0].element);

         },

         afterFinishInternal: function (effect) {

             d.undoClipping(effect.effects[0].element);

             d.undoPositioned(effect.effects[0].element);

             s.setStyle(effect.effects[0].element, oldStyle);

         }

     }, options || {});

     return new v.Move(element, {

         x: initialMoveX,

         y: initialMoveY,

         duration: 0.01,

         beforeSetupInternal: function (effect) {

             s.hideElement(effect.element);

             d.makeClipping(effect.element);

             d.makePositioned(effect.element);

         },

         afterFinishInternal: function (effect) {

             new v.Parallel(

                 [new v.Opacity(effect.element, {

                     sync: true, to: 1.0, from: 0.0,

                     transition: options.opacityTransition

                  }),

                  new v.Move(effect.element, {

                      x: moveX, y: moveY, sync: true,

                      transition: options.moveTransition

                  }),

                  new v.Scale(effect.element, 100, {

                         scaleMode: {originalHeight: dims.h,

                                     originalWidth: dims.w},

                         sync: true,

                         scaleFrom: /Opera/.test(navigator.userAgent) ? 1 : 0,

                         transition: options.scaleTransition,

                         restoreAfterFinish: true

                 })

                 ], optionsParallel

             );

         }

     });

 };

 /** @id MochiKit.Visual.shrink */

 MochiKit.Visual.shrink = function (element, /* optional */ options) {

     /***

     Shrink an element and make it disappear.

     ***/

     var d = MochiKit.DOM;

     var v = MochiKit.Visual;

     var s = MochiKit.Style;

     element = d.getElement(element);

     options = MochiKit.Base.update({

         direction: 'center',

         moveTransition: v.Transitions.sinoidal,

         scaleTransition: v.Transitions.sinoidal,

         opacityTransition: v.Transitions.none

     }, options || {});

     var oldStyle = {

         top: element.style.top,

         left: element.style.left,

         height: element.style.height,

         width: element.style.width,

         opacity: element.style.opacity || ''

     };

     var dims = s.getElementDimensions(element);

     var moveX, moveY;

     switch (options.direction) {

         case 'top-left':

             moveX = moveY = 0;

             break;

         case 'top-right':

             moveX = dims.w;

             moveY = 0;

             break;

         case 'bottom-left':

             moveX = 0;

             moveY = dims.h;

             break;

         case 'bottom-right':

             moveX = dims.w;

             moveY = dims.h;

             break;

         case 'center':

             moveX = dims.w / 2;

             moveY = dims.h / 2;

             break;

     }

     var elemClip;

     var optionsParallel = MochiKit.Base.update({

         beforeStartInternal: function (effect) {

             elemClip = d.makePositioned(effect.effects[0].element);

             d.makeClipping(effect.effects[0].element);

         },

         afterFinishInternal: function (effect) {

             s.hideElement(effect.effects[0].element);

             d.undoClipping(effect.effects[0].element, elemClip);

             d.undoPositioned(effect.effects[0].element);

             s.setStyle(effect.effects[0].element, oldStyle);

         }

     }, options || {});

     return new v.Parallel(

         [new v.Opacity(element, {

             sync: true, to: 0.0, from: 1.0,

             transition: options.opacityTransition

          }),

          new v.Scale(element, /Opera/.test(navigator.userAgent) ? 1 : 0, {

              sync: true, transition: options.scaleTransition,

              restoreAfterFinish: true

          }),

          new v.Move(element, {

              x: moveX, y: moveY, sync: true, transition: options.moveTransition

          })

         ], optionsParallel

     );

 };

 /** @id MochiKit.Visual.pulsate */

 MochiKit.Visual.pulsate = function (element, /* optional */ options) {

     /***

     Pulse an element between appear/fade.

     ***/

     var d = MochiKit.DOM;

     var v = MochiKit.Visual;

     var b = MochiKit.Base;

     var oldOpacity = d.getElement(element).style.opacity || '';

     options = b.update({

         duration: 3.0,

         from: 0,

         afterFinishInternal: function (effect) {

             MochiKit.Style.setStyle(effect.element, {opacity: oldOpacity});

         }

     }, options || {});

     var transition = options.transition || v.Transitions.sinoidal;

     var reverser = b.bind(function (pos) {

         return transition(1 - v.Transitions.pulse(pos));

     }, transition);

     b.bind(reverser, transition);

     return new v.Opacity(element, b.update({

         transition: reverser}, options));

 };

 /** @id MochiKit.Visual.fold */

 MochiKit.Visual.fold = function (element, /* optional */ options) {

     /***

     Fold an element, first vertically, then horizontally.

     ***/

     var d = MochiKit.DOM;

     var v = MochiKit.Visual;

     var s = MochiKit.Style;

     element = d.getElement(element);

     var oldStyle = {

         top: element.style.top,

         left: element.style.left,

         width: element.style.width,

         height: element.style.height

     };

     var elemClip = d.makeClipping(element);

     options = MochiKit.Base.update({

         scaleContent: false,

         scaleX: false,

         afterFinishInternal: function (effect) {

             new v.Scale(element, 1, {

                 scaleContent: false,

                 scaleY: false,

                 afterFinishInternal: function (effect) {

                     s.hideElement(effect.element);

                     d.undoClipping(effect.element, elemClip);

                     s.setStyle(effect.element, oldStyle);

                 }

             });

         }

     }, options || {});

     return new v.Scale(element, 5, options);

 };

 // Compatibility with MochiKit 1.0

 MochiKit.Visual.Color = MochiKit.Color.Color;

 MochiKit.Visual.getElementsComputedStyle = MochiKit.DOM.computedStyle;

 /* end of Rico adaptation */

 MochiKit.Visual.__new__ = function () {

     var m = MochiKit.Base;

     m.nameFunctions(this);

     this.EXPORT_TAGS = {

         ":common": this.EXPORT,

         ":all": m.concat(this.EXPORT, this.EXPORT_OK)

     };

 };

 MochiKit.Visual.EXPORT = [

     "roundElement",

     "roundClass",

     "tagifyText",

     "multiple",

     "toggle",

     "Base",

     "Parallel",

     "Opacity",

     "Move",

     "Scale",

     "Highlight",

     "ScrollTo",

     "fade",

     "appear",

     "puff",

     "blindUp",

     "blindDown",

     "switchOff",

     "dropOut",

     "shake",

     "slideDown",

     "slideUp",

     "squish",

     "grow",

     "shrink",

     "pulsate",

     "fold"

 ];

 MochiKit.Visual.EXPORT_OK = [

     "PAIRS"

 ];

 MochiKit.Visual.__new__();

 MochiKit.Base._exportSymbols(this, MochiKit.Visual);