/***

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');
    dojo.require('MochiKit.Iter');
}

if (typeof(JSAN) != 'undefined') {
    JSAN.use("MochiKit.Base", []);
    JSAN.use("MochiKit.DOM", []);
    JSAN.use("MochiKit.Style", []);
    JSAN.use("MochiKit.Color", []);
    JSAN.use("MochiKit.Iter", []);
}

try {
    if (typeof(MochiKit.Base) === 'undefined' ||
        typeof(MochiKit.DOM) === 'undefined' ||
        typeof(MochiKit.Style) === 'undefined' ||
        typeof(MochiKit.Color) === 'undefined' ||
        typeof(MochiKit.Iter) === 'undefined') {
        throw "";
    }
} catch (e) {
    throw "MochiKit.Visual depends on MochiKit.Base, MochiKit.DOM, MochiKit.Style, MochiKit.Color and MochiKit.Iter!";
}

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);
//    }
//};
//
//MochiKit.Visual.roundElement = function (e, options) {
//    new MochiKit.Visual._RoundCorners(e, options);
//};

//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);
//    }
//};
//
//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 (MochiKit.Base.isIE()) {
//        tagifyStyle += ';zoom:1';
//    }
//    element = MochiKit.DOM.getElement(element);
//    var fe = MochiKit.Iter.forEach;
//    fe(element.childNodes, function (child) {
//        if (child.nodeType == 3) {
//            fe(child.nodeValue.split(''), function (character) {
//                element.insertBefore(
//                    MochiKit.DOM.SPAN({style: tagifyStyle},
//                        character == ' ' ? String.fromCharCode(160) : character), child);
//            });
//            MochiKit.DOM.removeElement(child);
//        }
//    });
//};

MochiKit.Visual.forceRerendering = function (element) {
    try {
        element = MochiKit.DOM.getElement(element);
        var n = document.createTextNode(' ');
        element.appendChild(n);
        element.removeChild(n);
    } catch(e) {
    }
};
//
//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.Iter.forEach(elements, function (innerelement) {
//        options.delay = index * options.speed + masterDelay;
//        new effect(innerelement, options);
//        index += 1;
//    });
//};

MochiKit.Visual.PAIRS = {
    'slide': ['slideDown', 'slideUp'],
    'blind': ['blindDown', 'blindUp'],
    'appear': ['appear', 'fade'],
    'size': ['grow', 'shrink']
};

//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[MochiKit.DOM.isVisible(element) ?
//      v.PAIRS[effect][1] : v.PAIRS[effect][0]](element, options);
//};

/***

Transitions: define functions calculating variations depending of a position.

***/

MochiKit.Visual.Transitions = {}

MochiKit.Visual.Transitions.linear = function (pos) {
    return pos;
};

MochiKit.Visual.Transitions.sinoidal = function (pos) {
    return (-Math.cos(pos*Math.PI)/2) + 0.5;
};

MochiKit.Visual.Transitions.reverse = function (pos) {
    return 1 - pos;
};

MochiKit.Visual.Transitions.flicker = function (pos) {
    return ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random()/4;
};

MochiKit.Visual.Transitions.wobble = function (pos) {
    return (-Math.cos(pos*Math.PI*(9*pos))/2) + 0.5;
};

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)));
};

MochiKit.Visual.Transitions.none = function (pos) {
    return 0;
};

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;
    },

    add: function (effect) {
        var timestamp = new Date().getTime();

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

        var fe = MochiKit.Iter.forEach;
        switch (position) {
            case 'front':
                // move unstarted effects after this effect
                fe(this.effects, function (e) {
                    if (e.state == 'idle') {
                        e.startOn += effect.finishOn;
                        e.finishOn += effect.finishOn;
                    }
                });
                break;
            case 'end':
                var finish;
                // start effect after last queued effect has finished
                fe(this.effects, function (e) {
                    var i = e.finishOn;
                    if (i >= (finish || i)) {
                        finish = i;
                    }
                });
                timestamp = finish || timestamp;
                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 = setInterval(MochiKit.Base.bind(this.loop, this),
                                        40);
        }
    },

    remove: function (effect) {
        this.effects = MochiKit.Base.filter(function (e) {
            return e != effect;
        }, this.effects);
        if (this.effects.length == 0) {
            clearInterval(this.interval);
            this.interval = null;
        }
    },

    loop: function () {
        var timePos = new Date().getTime();
        MochiKit.Iter.forEach(this.effects, function (effect) {
            effect.loop(timePos);
        });
    }
});

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,

    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);
        }
    },

    loop: function (timePos) {
        if (timePos >= this.startOn) {
            if (timePos >= this.finishOn) {
                this.render(1.0);
                this.cancel();
                this.event('beforeFinish');
                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');
            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');
        }
    },

    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';
    },

    setup: function () {
    },

    finish: function () {
    },

    update: function (position) {
    },

    event: function (eventName) {
        if (this.options[eventName + 'Internal']) {
            this.options[eventName + 'Internal'](this);
        }
        if (this.options[eventName]) {
            this.options[eventName](this);
        }
    },

    repr: function () {
        return '[' + this.__class__.NAME + ', options:' +
               MochiKit.Base.repr(this.options) + ']';
    }
}

//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);
//    },
//
//    update: function (position) {
//        MochiKit.Iter.forEach(this.effects, function (effect) {
//            effect.render(position);
//        });
//    },
//
//    finish: function () {
//        MochiKit.Iter.forEach(this.effects, function (effect) {
//            effect.render(1.0);
//            effect.cancel();
//            effect.event('beforeFinish');
//            effect.finish();
//            effect.event('afterFinish');
//        });
//    }
//});

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 d = MochiKit.DOM;
        this.element = d.getElement(element);
        // make this work on IE on elements without 'layout'
        if (b.isIE() && (!this.element.currentStyle.hasLayout)) {
            d.setStyle(this.element, {zoom: 1});
        }
        options = b.update({
            from: d.getOpacity(this.element) || 0.0,
            to: 1.0
        }, options || {});
        this.start(options);
    },

    update: function (position) {
        MochiKit.DOM.setOpacity(this.element, position);
    }
});

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);
    },

    setup: function () {
        var d = MochiKit.DOM;
        // 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)
        d.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(d.getStyle(this.element, 'left') || '0');
        this.originalTop = parseFloat(d.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;
        }
    },

    update: function (position) {
        MochiKit.DOM.setStyle(this.element, {
            left: Math.round(this.options.x * position + this.originalLeft) + 'px',
            top: Math.round(this.options.y * position + this.originalTop) + 'px'
        });
    }
});

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);
    },

    setup: function () {
        this.restoreAfterFinish = this.options.restoreAfterFinish || false;
        this.elementPositioning = MochiKit.DOM.getStyle(this.element,
                                                        'position');

        var fe = MochiKit.Iter.forEach;
        var b = MochiKit.Base.bind;
        this.originalStyle = {};
        fe(['top', 'left', 'width', 'height', 'fontSize'],
            b(function (k) {
                this.originalStyle[k] = this.element.style[k];
            }, this));

        this.originalTop = this.element.offsetTop;
        this.originalLeft = this.element.offsetLeft;

        var fontSize = MochiKit.DOM.getStyle(this.element,
                                             'font-size') || '100%';
        fe(['em', 'px', '%'],
            b(function (fontSizeType) {
            if (fontSize.indexOf(fontSizeType) > 0) {
                this.fontSize = parseFloat(fontSize);
                this.fontSizeType = fontSizeType;
            }
        }, this));

        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];
        }
    },

    update: function (position) {
        var currentScale = (this.options.scaleFrom/100.0) +
                           (this.factor * position);
        if (this.options.scaleContent && this.fontSize) {
            MochiKit.DOM.setStyle(this.element, {
                fontSize: this.fontSize * currentScale + this.fontSizeType
            });
        }
        this.setDimensions(this.dims[0] * currentScale,
                           this.dims[1] * currentScale);
    },

    finish: function () {
        if (this.restoreAfterFinish) {
            MochiKit.DOM.setStyle(this.element, this.originalStyle);
        }
    },

    setDimensions: function (height, width) {
        var d = {};
        if (this.options.scaleX) {
            d.width = Math.round(width) + 'px';
        }
        if (this.options.scaleY) {
            d.height = Math.round(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.DOM.setStyle(this.element, d);
    }
});

//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);
//    },
//
//    setup: function () {
//        var d = MochiKit.DOM;
//        var b = MochiKit.Base;
//        // Prevent executing on elements not in the layout flow
//        if (d.getStyle(this.element, 'display') == 'none') {
//            this.cancel();
//            return;
//        }
//        // Disable background image during the effect
//        this.oldStyle = {
//            backgroundImage: d.getStyle(this.element, 'background-image')
//        };
//        d.setStyle(this.element, {
//            backgroundImage: 'none'
//        });
//
//        if (!this.options.endcolor) {
//            this.options.endcolor =
//                MochiKit.Color.Color.fromBackground(this.element).toHexString();
//        }
//        if (!this.options.restorecolor) {
//            this.options.restorecolor = d.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]);
//    },
//
//    update: function (position) {
//        var m = '#';
//        MochiKit.Iter.forEach([0, 1, 2], MochiKit.Base.bind(function (i) {
//            m += MochiKit.Color.toColorPart(Math.round(this._base[i] +
//                                            this._delta[i]*position));
//        }, this));
//        MochiKit.DOM.setStyle(this.element, {
//            backgroundColor: m
//        });
//    },
//
//    finish: function () {
//        MochiKit.DOM.setStyle(this.element,
//            MochiKit.Base.update(this.oldStyle, {
//                backgroundColor: this.options.endcolor
//        }));
//    }
//});

//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 || {});
//    },
//
//    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;
//    },
//
//    update: function (position) {
//        var p = MochiKit.Position;
//        p.prepare();
//        window.scrollTo(p.windowOffset.x, this.scrollStart + (position * this.delta));
//    }
//});

/***

Combination effects.

***/

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 d = MochiKit.DOM;
    var oldOpacity = d.getInlineOpacity(element);
    options = MochiKit.Base.update({
        from: d.getOpacity(element) || 1.0,
        to: 0.0,
        afterFinishInternal: function (effect) {
            if (effect.options.to !== 0) {
                return;
            }
            MochiKit.Style.hideElement(effect.element);
            d.setStyle(effect.element, {opacity: oldOpacity});
        }
    }, options || {});
    return new MochiKit.Visual.Opacity(element, options);
};

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

    Make an element appear.

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

    ***/
    var d = MochiKit.DOM;
    var v = MochiKit.Visual;
    options = MochiKit.Base.update({
        from: (d.getStyle(element, 'display') == 'none' ? 0.0 :
               d.getOpacity(element) || 0.0),
        to: 1.0,
        // force Safari to render floated elements properly
        afterFinishInternal: function (effect) {
            v.forceRerendering(effect.element);
        },
        beforeSetupInternal: function (effect) {
            d.setOpacity(effect.element, effect.options.from);
            MochiKit.Style.showElement(effect.element);
        }
    }, options || {});
    return new v.Opacity(element, options);
};

//MochiKit.Visual.puff = function (element, /* optional */ options) {
//    /***
//
//    'Puff' an element: grow it to double size, fading it and make it hidden.
//
//    ***/
//    var d = MochiKit.DOM;
//    var v = MochiKit.Visual;
//    element = d.getElement(element);
//    var oldStyle = {
//        opacity: d.getInlineOpacity(element),
//        position: d.getStyle(element, 'position')
//    };
//    options = MochiKit.Base.update({
//        beforeSetupInternal: function (effect) {
//            d.setStyle(effect.effects[0].element,
//                                  {position: 'absolute'});
//        },
//        afterFinishInternal: function (effect) {
//            MochiKit.Style.hideElement(effect.effects[0].element);
//            d.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);
//};

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);
    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);
        }
    }, options || {});

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

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

    Blind an element down: restore its vertical size.

    ***/
    var d = MochiKit.DOM;
    element = d.getElement(element);
    var elementDimensions = MochiKit.Style.getElementDimensions(element);
    options = MochiKit.Base.update({
        scaleContent: false,
        scaleX: false,
        scaleFrom: 0,
        scaleMode: {originalHeight: elementDimensions.h,
                    originalWidth: elementDimensions.w},
        restoreAfterFinish: true,
        afterSetupInternal: function (effect) {
            d.makeClipping(effect.element);
            d.setStyle(effect.element, {height: '0px'});
            MochiKit.Style.showElement(effect.element);
        },
        afterFinishInternal: function (effect) {
            d.undoClipping(effect.element);
        }
    }, options || {});
    return new MochiKit.Visual.Scale(element, 100, options);
};

//MochiKit.Visual.switchOff = function (element, /* optional */ options) {
//    /***
//
//    Apply a switch-off-like effect.
//
//    ***/
//    var d = MochiKit.DOM;
//    element = d.getElement(element);
//    var oldOpacity = d.getInlineOpacity(element);
//    var options = MochiKit.Base.update({
//        duration: 0.3,
//        scaleFromCenter: true,
//        scaleX: false,
//        scaleContent: false,
//        restoreAfterFinish: true,
//        beforeSetupInternal: function (effect) {
//            d.makePositioned(effect.element);
//            d.makeClipping(effect.element);
//        },
//        afterFinishInternal: function (effect) {
//            MochiKit.Style.hideElement(effect.element);
//            d.undoClipping(effect.element);
//            d.undoPositioned(effect.element);
//            d.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)
//        }
//    });
//};

//MochiKit.Visual.dropOut = function (element, /* optional */ options) {
//    /***
//
//    Make an element fall and disappear.
//
//    ***/
//    var d = MochiKit.DOM;
//    element = d.getElement(element);
//    var oldStyle = {
//        top: d.getStyle(element, 'top'),
//        left: d.getStyle(element, 'left'),
//        opacity: d.getInlineOpacity(element)
//    };
//
//    options = MochiKit.Base.update({
//        duration: 0.5,
//        beforeSetupInternal: function (effect) {
//            d.makePositioned(effect.effects[0].element);
//        },
//        afterFinishInternal: function (effect) {
//            MochiKit.Style.hideElement(effect.effects[0].element);
//            d.undoPositioned(effect.effects[0].element);
//            d.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);
//};

//MochiKit.Visual.shake = function (element, /* optional */ options) {
//    /***
//
//    Move an element from left to right several times.
//
//    ***/
//    var d = MochiKit.DOM;
//    var v = MochiKit.Visual;
//    element = d.getElement(element);
//    options = MochiKit.Base.update({
//        x: -20,
//        y: 0,
//        duration: 0.05,
//        afterFinishInternal: function (effect) {
//            d.undoPositioned(effect.element);
//            d.setStyle(effect.element, oldStyle);
//        }
//    }, options || {});
//    var oldStyle = {
//        top: d.getStyle(element, 'top'),
//        left: d.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
//        ) }}) }}) }}) }}) }});
//};

//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;
//    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 = d.getStyle(element.firstChild, 'bottom') || 0;
//    var elementDimensions = MochiKit.Style.getElementDimensions(element);
//    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 (b.isOpera()) {
//                d.setStyle(effect.element, {top: ''});
//            }
//            d.makeClipping(effect.element);
//            d.setStyle(effect.element, {height: '0px'});
//            MochiKit.Style.showElement(effect.element);
//        },
//        afterUpdateInternal: function (effect) {
//            d.setStyle(effect.element.firstChild,
//               {bottom: (effect.dims[0] - effect.element.clientHeight) + 'px'})
//        },
//        afterFinishInternal: function (effect) {
//            d.undoClipping(effect.element);
//            // IE will crash if child is undoPositioned first
//            if (b.isIE()) {
//                d.undoPositioned(effect.element);
//                d.undoPositioned(effect.element.firstChild);
//            } else {
//                d.undoPositioned(effect.element.firstChild);
//                d.undoPositioned(effect.element);
//            }
//            d.setStyle(effect.element.firstChild,
//                                  {bottom: oldInnerBottom});
//        }
//    }, options || {});
//
//    return new MochiKit.Visual.Scale(element, 100, options);
//};

//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;
//    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 = d.getStyle(element.firstChild, 'bottom');
//    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 (b.isOpera()) {
//                d.setStyle(effect.element, {top: ''});
//            }
//            d.makeClipping(effect.element);
//            MochiKit.Style.showElement(effect.element);
//        },
//        afterUpdateInternal: function (effect) {
//            d.setStyle(effect.element.firstChild,
//            {bottom: (effect.dims[0] - effect.element.clientHeight) + 'px'});
//        },
//        afterFinishInternal: function (effect) {
//            MochiKit.Style.hideElement(effect.element);
//            d.undoClipping(effect.element);
//            d.undoPositioned(effect.element.firstChild);
//            d.undoPositioned(effect.element);
//            d.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
//MochiKit.Visual.squish = function (element, /* optional */ options) {
//    /***
//
//    Reduce an element and make it disappear.
//
//    ***/
//    var d = MochiKit.DOM;
//    var b = MochiKit.Base;
//    options = b.update({
//        restoreAfterFinish: true,
//        beforeSetupInternal: function (effect) {
//             d.makeClipping(effect.element);
//        },
//        afterFinishInternal: function (effect) {
//              MochiKit.Style.hideElement(effect.element);
//              d.undoClipping(effect.element);
//        }
//    }, options || {});
//
//    return new MochiKit.Visual.Scale(element, b.isOpera() ? 1 : 0, options);
//};
//
//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;
//    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: d.getInlineOpacity(element)
//    };
//
//    var dims = MochiKit.Style.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) {
//            d.setStyle(effect.effects[0].element, {height: '0px'});
//            MochiKit.Style.showElement(effect.effects[0].element);
//        },
//        afterFinishInternal: function (effect) {
//            d.undoClipping(effect.effects[0].element);
//            d.undoPositioned(effect.effects[0].element);
//            d.setStyle(effect.effects[0].element, oldStyle);
//        }
//    }, options || {});
//
//    return new v.Move(element, {
//        x: initialMoveX,
//        y: initialMoveY,
//        duration: 0.01,
//        beforeSetupInternal: function (effect) {
//            MochiKit.Style.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: MochiKit.Base.isOpera() ? 1 : 0,
//                        transition: options.scaleTransition,
//                        restoreAfterFinish: true
//                })
//                ], optionsParallel
//            );
//        }
//    });
//};
//
//MochiKit.Visual.shrink = function (element, /* optional */ options) {
//    /***
//
//    Shrink an element and make it disappear.
//
//    ***/
//    var d = MochiKit.DOM;
//    var v = MochiKit.Visual;
//    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: d.getInlineOpacity(element)
//    };
//
//    var dims = MochiKit.Style.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 optionsParallel = MochiKit.Base.update({
//        beforeStartInternal: function (effect) {
//            d.makePositioned(effect.effects[0].element);
//            d.makeClipping(effect.effects[0].element);
//        },
//        afterFinishInternal: function (effect) {
//            MochiKit.Style.hideElement(effect.effects[0].element);
//            d.undoClipping(effect.effects[0].element);
//            d.undoPositioned(effect.effects[0].element);
//            d.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, MochiKit.Base.isOpera() ? 1 : 0, {
//             sync: true, transition: options.scaleTransition,
//             restoreAfterFinish: true
//         }),
//         new v.Move(element, {
//             x: moveX, y: moveY, sync: true, transition: options.moveTransition
//         })
//        ], optionsParallel
//    );
//};
//
//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;
//    element = d.getElement(element);
//    var oldOpacity = d.getInlineOpacity(element);
//    options = b.update({
//        duration: 3.0,
//        from: 0,
//        afterFinishInternal: function (effect) {
//            d.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));
//};
//
//MochiKit.Visual.fold = function (element, /* optional */ options) {
//    /***
//
//    Fold an element, first vertically, then horizontally.
//
//    ***/
//    var d = MochiKit.DOM;
//    var v = MochiKit.Visual;
//    element = d.getElement(element);
//    var oldStyle = {
//        top: element.style.top,
//        left: element.style.left,
//        width: element.style.width,
//        height: element.style.height
//    };
//    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) {
//                    MochiKit.Style.hideElement(effect.element);
//                    d.undoClipping(effect.element);
//                    d.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);