// Copyright (c) 2006 Sébastien Gruhier (http://xilinus.com, http://itseb.com)
// 
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// VERSION 1.3

var Window = Class.create();

Window.keepMultiModalWindow = false;
Window.hasEffectLib = (typeof Effect != 'undefined');
Window.resizeEffectDuration = 0.4;

Window.prototype = {
    // Constructor
    // Available parameters : className, blurClassName, title, minWidth, minHeight, maxWidth, maxHeight, width, height, top, left, bottom, right, resizable, zIndex, opacity, recenterAuto, wiredDrag
    //                        hideEffect, showEffect, showEffectOptions, hideEffectOptions, effectOptions, url, draggable, closable, minimizable, maximizable, parent, onload
    //                        add all callbacks (if you do not use an observer)
    //                        onDestroy onStartResize onStartMove onResize onMove onEndResize onEndMove onFocus onBlur onBeforeShow onShow onHide onMinimize onMaximize onClose

    initialize: function() {
        var id;
        var optionIndex = 0;
        // For backward compatibility like win= new Window("id", {...}) instead of win = new Window({id: "id", ...})
        if (arguments.length > 0) {
            if (typeof arguments[0] == "string") {
                id = arguments[0];
                optionIndex = 1;
            }
            else
                id = arguments[0] ? arguments[0].id : null;
        }

        // Generate unique ID if not specified
        if (!id)
            id = "window_" + new Date().getTime();

        if ($(id))
            alert("Window " + id + " is already registered in the DOM! Make sure you use setDestroyOnClose() or destroyOnClose: true in the constructor");

        this.options = Object.extend({
            className: "dialog",
            blurClassName: null,
            minWidth: 100,
            minHeight: 20,
            resizable: true,
            closable: true,
            minimizable: true,
            maximizable: true,
            draggable: true,
            userData: null,
            showEffect: (Window.hasEffectLib ? Effect.Appear : Element.show),
            hideEffect: (Window.hasEffectLib ? Effect.Fade : Element.hide),
            showEffectOptions: {},
            hideEffectOptions: {},
            effectOptions: null,
            parent: document.body,
            title: " ",
            url: null,
            onload: Prototype.emptyFunction,
            width: 200,
            height: 300,
            opacity: 1,
            recenterAuto: true,
            wiredDrag: false,
            closeCallback: null,
            destroyOnClose: false,
            gridX: 1,
            gridY: 1
        }, arguments[optionIndex] || {});
        if (this.options.blurClassName)
            this.options.focusClassName = this.options.className;

        if (typeof this.options.top == "undefined" && typeof this.options.bottom == "undefined")
            this.options.top = this._round(Math.random() * 500, this.options.gridY);
        if (typeof this.options.left == "undefined" && typeof this.options.right == "undefined")
            this.options.left = this._round(Math.random() * 500, this.options.gridX);

        if (this.options.effectOptions) {
            Object.extend(this.options.hideEffectOptions, this.options.effectOptions);
            Object.extend(this.options.showEffectOptions, this.options.effectOptions);
            if (this.options.showEffect == Element.Appear)
                this.options.showEffectOptions.to = this.options.opacity;
        }
        if (Window.hasEffectLib) {
            if (this.options.showEffect == Effect.Appear)
                this.options.showEffectOptions.to = this.options.opacity;

            if (this.options.hideEffect == Effect.Fade)
                this.options.hideEffectOptions.from = this.options.opacity;
        }
        if (this.options.hideEffect == Element.hide)
            this.options.hideEffect = function() { Element.hide(this.element); if (this.options.destroyOnClose) this.destroy(); } .bind(this)

        if (this.options.parent != document.body)
            this.options.parent = $(this.options.parent);

        this.element = this._createWindow(id);
        this.element.win = this;

        // Bind event listener
        this.eventMouseDown = this._initDrag.bindAsEventListener(this);
        this.eventMouseUp = this._endDrag.bindAsEventListener(this);
        this.eventMouseMove = this._updateDrag.bindAsEventListener(this);
        this.eventOnLoad = this._getWindowBorderSize.bindAsEventListener(this);
        this.eventMouseDownContent = this.toFront.bindAsEventListener(this);
        this.eventResize = this._recenter.bindAsEventListener(this);

        this.topbar = $(this.element.id + "_top");
        this.bottombar = $(this.element.id + "_bottom");
        this.content = $(this.element.id + "_content");

        Event.observe(this.topbar, "mousedown", this.eventMouseDown);
        Event.observe(this.bottombar, "mousedown", this.eventMouseDown);
        Event.observe(this.content, "mousedown", this.eventMouseDownContent);
        Event.observe(window, "load", this.eventOnLoad);
        Event.observe(window, "resize", this.eventResize);
        Event.observe(window, "scroll", this.eventResize);
        Event.observe(this.options.parent, "scroll", this.eventResize);

        if (this.options.draggable) {
            var that = this;
            [this.topbar, this.topbar.up().previous(), this.topbar.up().next()].each(function(element) {
                element.observe("mousedown", that.eventMouseDown);
                element.addClassName("top_draggable");
            });
            [this.bottombar.up(), this.bottombar.up().previous(), this.bottombar.up().next()].each(function(element) {
                element.observe("mousedown", that.eventMouseDown);
                element.addClassName("bottom_draggable");
            });

        }

        if (this.options.resizable) {
            this.sizer = $(this.element.id + "_sizer");
            Event.observe(this.sizer, "mousedown", this.eventMouseDown);
        }

        this.useLeft = null;
        this.useTop = null;
        if (typeof this.options.left != "undefined") {
            this.element.setStyle({ left: parseFloat(this.options.left) + 'px' });
            this.useLeft = true;
        }
        else {
            this.element.setStyle({ right: parseFloat(this.options.right) + 'px' });
            this.useLeft = false;
        }

        if (typeof this.options.top != "undefined") {
            this.element.setStyle({ top: parseFloat(this.options.top) + 'px' });
            this.useTop = true;
        }
        else {
            this.element.setStyle({ bottom: parseFloat(this.options.bottom) + 'px' });
            this.useTop = false;
        }

        this.storedLocation = null;

        this.setOpacity(this.options.opacity);
        if (this.options.zIndex)
            this.setZIndex(this.options.zIndex)

        if (this.options.destroyOnClose)
            this.setDestroyOnClose(true);

        this._getWindowBorderSize();
        this.width = this.options.width;
        this.height = this.options.height;
        this.visible = false;

        this.constraint = false;
        this.constraintPad = { top: 0, left: 0, bottom: 0, right: 0 };

        if (this.width && this.height)
            this.setSize(this.options.width, this.options.height);
        this.setTitle(this.options.title)
        Windows.register(this);
    },

    // Destructor
    destroy: function() {
        this._notify("onDestroy");
        Event.stopObserving(this.topbar, "mousedown", this.eventMouseDown);
        Event.stopObserving(this.bottombar, "mousedown", this.eventMouseDown);
        Event.stopObserving(this.content, "mousedown", this.eventMouseDownContent);

        Event.stopObserving(window, "load", this.eventOnLoad);
        Event.stopObserving(window, "resize", this.eventResize);
        Event.stopObserving(window, "scroll", this.eventResize);

        Event.stopObserving(this.content, "load", this.options.onload);

        if (this._oldParent) {
            var content = this.getContent();
            var originalContent = null;
            for (var i = 0; i < content.childNodes.length; i++) {
                originalContent = content.childNodes[i];
                if (originalContent.nodeType == 1)
                    break;
                originalContent = null;
            }
            if (originalContent)
                this._oldParent.appendChild(originalContent);
            this._oldParent = null;
        }

        if (this.sizer)
            Event.stopObserving(this.sizer, "mousedown", this.eventMouseDown);

        if (this.options.url)
            this.content.src = null

        if (this.iefix)
            Element.remove(this.iefix);

        Element.remove(this.element);
        Windows.unregister(this);
    },

    // Sets close callback, if it sets, it should return true to be able to close the window.
    setCloseCallback: function(callback) {
        this.options.closeCallback = callback;
    },

    // Gets window content
    getContent: function() {
        return this.content;
    },

    // Sets the content with an element id
    setContent: function(id, autoresize, autoposition) {
        var element = $(id);
        if (null == element) throw "Unable to find element '" + id + "' in DOM";
        this._oldParent = element.parentNode;

        var d = null;
        var p = null;

        if (autoresize)
            d = Element.getDimensions(element);
        if (autoposition)
            p = Position.cumulativeOffset(element);

        var content = this.getContent();
        // Clear HTML (and even iframe)
        this.setHTMLContent("");
        content = this.getContent();

        content.appendChild(element);
        element.show();
        if (autoresize)
            this.setSize(d.width, d.height);
        if (autoposition)
            this.setLocation(p[1] - this.heightN, p[0] - this.widthW);
    },

    setHTMLContent: function(html) {
        // It was an url (iframe), recreate a div content instead of iframe content
        if (this.options.url) {
            this.content.src = null;
            this.options.url = null;

            var content = "<div id=\"" + this.getId() + "_content\" class=\"" + this.options.className + "_content\"> </div>";
            $(this.getId() + "_table_content").innerHTML = content;

            this.content = $(this.element.id + "_content");
        }

        this.getContent().innerHTML = html;
    },

    setAjaxContent: function(url, options, showCentered, showModal) {
        this.showFunction = showCentered ? "showCenter" : "show";
        this.showModal = showModal || false;

        options = options || {};

        // Clear HTML (and even iframe)
        this.setHTMLContent("");

        this.onComplete = options.onComplete;
        if (!this._onCompleteHandler)
            this._onCompleteHandler = this._setAjaxContent.bind(this);
        options.onComplete = this._onCompleteHandler;

        new Ajax.Request(url, options);
        options.onComplete = this.onComplete;
    },

    _setAjaxContent: function(originalRequest) {
        Element.update(this.getContent(), originalRequest.responseText);
        if (this.onComplete)
            this.onComplete(originalRequest);
        this.onComplete = null;
        this[this.showFunction](this.showModal)
    },

    setURL: function(url) {
        // Not an url content, change div to iframe
        if (this.options.url)
            this.content.src = null;
        this.options.url = url;
        var content = "<iframe frameborder='0' name='" + this.getId() + "_content'  id='" + this.getId() + "_content' src='" + url + "' width='" + this.width + "' height='" + this.height + "'> </iframe>";
        $(this.getId() + "_table_content").innerHTML = content;

        this.content = $(this.element.id + "_content");
    },

    getURL: function() {
        return this.options.url ? this.options.url : null;
    },

    refresh: function() {
        if (this.options.url)
            $(this.element.getAttribute('id') + '_content').src = this.options.url;
    },

    // Stores position/size in a cookie, by default named with window id
    setCookie: function(name, expires, path, domain, secure) {
        name = name || this.element.id;
        this.cookie = [name, expires, path, domain, secure];

        // Get cookie
        var value = WindowUtilities.getCookie(name)
        // If exists
        if (value) {
            var values = value.split(',');
            var x = values[0].split(':');
            var y = values[1].split(':');

            var w = parseFloat(values[2]), h = parseFloat(values[3]);
            var mini = values[4];
            var maxi = values[5];

            this.setSize(w, h);
            if (mini == "true")
                this.doMinimize = true; // Minimize will be done at onload window event
            else if (maxi == "true")
                this.doMaximize = true; // Maximize will be done at onload window event

            this.useLeft = x[0] == "l";
            this.useTop = y[0] == "t";

            this.element.setStyle(this.useLeft ? { left: x[1]} : { right: x[1] });
            this.element.setStyle(this.useTop ? { top: y[1]} : { bottom: y[1] });
        }
    },

    // Gets window ID
    getId: function() {
        return this.element.id;
    },

    // Detroys itself when closing 
    setDestroyOnClose: function() {
        this.options.destroyOnClose = true;
    },

    setConstraint: function(bool, padding) {
        this.constraint = bool;
        this.constraintPad = Object.extend(this.constraintPad, padding || {});
        // Reset location to apply constraint
        if (this.useTop && this.useLeft)
            this.setLocation(parseFloat(this.element.style.top), parseFloat(this.element.style.left));
    },

    // initDrag event

    _initDrag: function(event) {
        // No resize on minimized window
        if (Event.element(event) == this.sizer && this.isMinimized())
            return;

        // No move on maximzed window
        if (Event.element(event) != this.sizer && this.isMaximized())
            return;

        if (Prototype.Browser.IE && this.heightN == 0)
            this._getWindowBorderSize();

        // Get pointer X,Y
        this.pointer = [this._round(Event.pointerX(event), this.options.gridX), this._round(Event.pointerY(event), this.options.gridY)];
        if (this.options.wiredDrag)
            this.currentDrag = this._createWiredElement();
        else
            this.currentDrag = this.element;

        // Resize
        if (Event.element(event) == this.sizer) {
            this.doResize = true;
            this.widthOrg = this.width;
            this.heightOrg = this.height;
            this.bottomOrg = parseFloat(this.element.getStyle('bottom'));
            this.rightOrg = parseFloat(this.element.getStyle('right'));
            this._notify("onStartResize");
        }
        else {
            this.doResize = false;

            // Check if click on close button,
            var closeButton = $(this.getId() + '_close');

            if (closeButton && Position.within(closeButton, this.pointer[0], this.pointer[1])) {
                this.currentDrag = null;
                return;
            }

            this.toFront();

            if (!this.options.draggable)
                return;
            this._notify("onStartMove");
        }
        // Register global event to capture mouseUp and mouseMove
        Event.observe(document, "mouseup", this.eventMouseUp, false);
        Event.observe(document, "mousemove", this.eventMouseMove, false);

        // Add an invisible div to keep catching mouse event over iframes
        WindowUtilities.disableScreen('__invisible__', '__invisible__', this.overlayOpacity);

        // Stop selection while dragging
        document.body.ondrag = function() { return false; };
        document.body.onselectstart = function() { return false; };

        this.currentDrag.show();
        Event.stop(event);
    },

    _round: function(val, round) {
        return round == 1 ? val : val = Math.floor(val / round) * round;
    },

    // updateDrag event
    _updateDrag: function(event) {
        var pointer = [this._round(Event.pointerX(event), this.options.gridX), this._round(Event.pointerY(event), this.options.gridY)];
        var dx = pointer[0] - this.pointer[0];
        var dy = pointer[1] - this.pointer[1];

        // Resize case, update width/height
        if (this.doResize) {
            var w = this.widthOrg + dx;
            var h = this.heightOrg + dy;

            dx = this.width - this.widthOrg
            dy = this.height - this.heightOrg

            // Check if it's a right position, update it to keep upper-left corner at the same position
            if (this.useLeft)
                w = this._updateWidthConstraint(w)
            else
                this.currentDrag.setStyle({ right: (this.rightOrg - dx) + 'px' });
            // Check if it's a bottom position, update it to keep upper-left corner at the same position
            if (this.useTop)
                h = this._updateHeightConstraint(h)
            else
                this.currentDrag.setStyle({ bottom: (this.bottomOrg - dy) + 'px' });

            this.setSize(w, h);
            this._notify("onResize");
        }
        // Move case, update top/left
        else {
            this.pointer = pointer;

            if (this.useLeft) {
                var left = parseFloat(this.currentDrag.getStyle('left')) + dx;
                var newLeft = this._updateLeftConstraint(left);
                // Keep mouse pointer correct
                this.pointer[0] += newLeft - left;
                this.currentDrag.setStyle({ left: newLeft + 'px' });
            }
            else
                this.currentDrag.setStyle({ right: parseFloat(this.currentDrag.getStyle('right')) - dx + 'px' });

            if (this.useTop) {
                var top = parseFloat(this.currentDrag.getStyle('top')) + dy;
                var newTop = this._updateTopConstraint(top);
                // Keep mouse pointer correct
                this.pointer[1] += newTop - top;
                this.currentDrag.setStyle({ top: newTop + 'px' });
            }
            else
                this.currentDrag.setStyle({ bottom: parseFloat(this.currentDrag.getStyle('bottom')) - dy + 'px' });

            this._notify("onMove");
        }
        if (this.iefix)
            this._fixIEOverlapping();

        this._removeStoreLocation();
        Event.stop(event);
    },

    // endDrag callback
    _endDrag: function(event) {
        // Remove temporary div over iframes
        WindowUtilities.enableScreen('__invisible__');

        if (this.doResize)
            this._notify("onEndResize");
        else
            this._notify("onEndMove");

        // Release event observing
        Event.stopObserving(document, "mouseup", this.eventMouseUp, false);
        Event.stopObserving(document, "mousemove", this.eventMouseMove, false);

        Event.stop(event);

        this._hideWiredElement();

        // Store new location/size if need be
        this._saveCookie()

        // Restore selection
        document.body.ondrag = null;
        document.body.onselectstart = null;
    },

    _updateLeftConstraint: function(left) {
        if (this.constraint && this.useLeft && this.useTop) {
            var width = this.options.parent == document.body ? WindowUtilities.getPageSize().windowWidth : this.options.parent.getDimensions().width;

            if (left < this.constraintPad.left)
                left = this.constraintPad.left;
            if (left + this.width + this.widthE + this.widthW > width - this.constraintPad.right)
                left = width - this.constraintPad.right - this.width - this.widthE - this.widthW;
        }
        return left;
    },

    _updateTopConstraint: function(top) {
        if (this.constraint && this.useLeft && this.useTop) {
            var height = this.options.parent == document.body ? WindowUtilities.getPageSize().windowHeight : this.options.parent.getDimensions().height;

            var h = this.height + this.heightN + this.heightS;

            if (top < this.constraintPad.top)
                top = this.constraintPad.top;
            if (top + h > height - this.constraintPad.bottom)
                top = height - this.constraintPad.bottom - h;
        }
        return top;
    },

    _updateWidthConstraint: function(w) {
        if (this.constraint && this.useLeft && this.useTop) {
            var width = this.options.parent == document.body ? WindowUtilities.getPageSize().windowWidth : this.options.parent.getDimensions().width;
            var left = parseFloat(this.element.getStyle("left"));

            if (left + w + this.widthE + this.widthW > width - this.constraintPad.right)
                w = width - this.constraintPad.right - left - this.widthE - this.widthW;
        }
        return w;
    },

    _updateHeightConstraint: function(h) {
        if (this.constraint && this.useLeft && this.useTop) {
            var height = this.options.parent == document.body ? WindowUtilities.getPageSize().windowHeight : this.options.parent.getDimensions().height;
            var top = parseFloat(this.element.getStyle("top"));

            if (top + h + this.heightN + this.heightS > height - this.constraintPad.bottom)
                h = height - this.constraintPad.bottom - top - this.heightN - this.heightS;
        }
        return h;
    },


    // Creates HTML window code
    _createWindow: function(id) {
        var className = this.options.className;
        var win = document.createElement("div");
        win.setAttribute('id', id);
        win.className = "dialog";

        var content;
        if (this.options.url)
            content = "<iframe frameborder=\"0\" name=\"" + id + "_content\"  id=\"" + id + "_content\" src=\"" + this.options.url + "\"> </iframe>";
        else
            content = "<div id=\"" + id + "_content\" class=\"" + className + "_content\"> </div>";

        var closeDiv = this.options.closable ? "<div class='" + className + "_close' id='" + id + "_close' onclick='Windows.close(\"" + id + "\", event)'> </div>" : "";
        var minDiv = this.options.minimizable ? "<div class='1" + className + "_minimize' id='" + id + "_minimize' onclick='Windows.minimize(\"" + id + "\", event)'> </div>" : "";
        var maxDiv = this.options.maximizable ? "<div class='1" + className + "_maximize' id='" + id + "_maximize' onclick='Windows.maximize(\"" + id + "\", event)'> </div>" : "";
        var seAttributes = this.options.resizable ? "class='" + className + "_sizer' id='" + id + "_sizer'" : "class='" + className + "_se'";
        var blank = "../themes/default/blank.gif";
        var closeDiva = this.options.closable ? "<div class='" + className + "_closea' id='" + id + "_close' onclick='Windows.close(\"" + id + "\", event)'> <u>Close</u> </div>" : "";

        win.innerHTML = closeDiv + minDiv + maxDiv + closeDiva + "\
      <table id='" + id + "_row1' class=\"top table_window\">\
        <tr>\
          <td class='" + className + "_nw'></td>\
          <td class='" + className + "_n'><div id='" + id + "_top' class='" + className + "_title title_window'>" + this.options.title + "</div></td>\
          <td class='" + className + "_ne'></td>\
        </tr>\
      </table>\
      <table id='" + id + "_row2' class=\"mid table_window\">\
        <tr>\
          <td class='" + className + "_w'></td>\
            <td id='" + id + "_table_content' class='" + className + "_content' valign='top'>" + content + "</td>\
          <td class='" + className + "_e'></td>\
        </tr>\
      </table>\
        <table id='" + id + "_row3' class=\"bot table_window\">\
        <tr>\
          <td class='" + className + "_sw'></td>\
            <td class='" + className + "_s'><div id='" + id + "_bottom' class='status_bar'><span style='float:left; width:1px; height:1px'></span></div></td>\
            <td " + seAttributes + "></td>\
        </tr>\
      </table>\
    ";
        Element.hide(win);
        this.options.parent.insertBefore(win, this.options.parent.firstChild);
        Event.observe($(id + "_content"), "load", this.options.onload);
        return win;
    },


    changeClassName: function(newClassName) {
        var className = this.options.className;
        var id = this.getId();
        $A(["_close", "_minimize", "_maximize", "_sizer", "_content"]).each(function(value) { this._toggleClassName($(id + value), className + value, newClassName + value) } .bind(this));
        this._toggleClassName($(id + "_top"), className + "_title", newClassName + "_title");
        $$("#" + id + " td").each(function(td) { td.className = td.className.sub(className, newClassName); });
        this.options.className = newClassName;
    },

    _toggleClassName: function(element, oldClassName, newClassName) {
        if (element) {
            element.removeClassName(oldClassName);
            element.addClassName(newClassName);
        }
    },

    // Sets window location
    setLocation: function(top, left) {
        top = this._updateTopConstraint(top);
        left = this._updateLeftConstraint(left);

        var e = this.currentDrag || this.element;
        e.setStyle({ top: top + 'px' });
        e.setStyle({ left: left + 'px' });

        this.useLeft = true;
        this.useTop = true;
    },

    getLocation: function() {
        var location = {};
        if (this.useTop)
            location = Object.extend(location, { top: this.element.getStyle("top") });
        else
            location = Object.extend(location, { bottom: this.element.getStyle("bottom") });
        if (this.useLeft)
            location = Object.extend(location, { left: this.element.getStyle("left") });
        else
            location = Object.extend(location, { right: this.element.getStyle("right") });

        return location;
    },

    // Gets window size
    getSize: function() {
        return { width: this.width, height: this.height };
    },

    // Sets window size
    setSize: function(width, height, useEffect) {
        width = parseFloat(width);
        height = parseFloat(height);

        // Check min and max size
        if (!this.minimized && width < this.options.minWidth)
            width = this.options.minWidth;

        if (!this.minimized && height < this.options.minHeight)
            height = this.options.minHeight;

        if (this.options.maxHeight && height > this.options.maxHeight)
            height = this.options.maxHeight;

        if (this.options.maxWidth && width > this.options.maxWidth)
            width = this.options.maxWidth;


        if (this.useTop && this.useLeft && Window.hasEffectLib && Effect.ResizeWindow && useEffect) {
            new Effect.ResizeWindow(this, null, null, width, height, { duration: Window.resizeEffectDuration });
        } else {
            this.width = width;
            this.height = height;
            var e = this.currentDrag ? this.currentDrag : this.element;

            e.setStyle({ width: width + this.widthW + this.widthE + "px" })
            e.setStyle({ height: height + this.heightN + this.heightS + "px" })

            // Update content size
            if (!this.currentDrag || this.currentDrag == this.element) {
                var content = $(this.element.id + '_content');
                content.setStyle({ height: height + 'px' });
                content.setStyle({ width: width + 'px' });
            }
        }
    },

    updateHeight: function() {
        this.setSize(this.width, this.content.scrollHeight, true);
    },

    updateWidth: function() {
        this.setSize(this.content.scrollWidth, this.height, true);
    },

    // Brings window to front
    toFront: function() {
        if (this.element.style.zIndex < Windows.maxZIndex)
            this.setZIndex(Windows.maxZIndex + 1);
        if (this.iefix)
            this._fixIEOverlapping();
    },

    getBounds: function(insideOnly) {
        if (!this.width || !this.height || !this.visible)
            this.computeBounds();
        var w = this.width;
        var h = this.height;

        if (!insideOnly) {
            w += this.widthW + this.widthE;
            h += this.heightN + this.heightS;
        }
        var bounds = Object.extend(this.getLocation(), { width: w + "px", height: h + "px" });
        return bounds;
    },

    computeBounds: function() {
        if (!this.width || !this.height) {
            var size = WindowUtilities._computeSize(this.content.innerHTML, this.content.id, this.width, this.height, 0, this.options.className)
            if (this.height)
                this.width = size + 5
            else
                this.height = size + 5
        }

        this.setSize(this.width, this.height);
        if (this.centered)
            this._center(this.centerTop, this.centerLeft);
    },

    // Displays window modal state or not
    show: function(modal) {
        this.visible = true;
        if (modal) {
            // Hack for Safari !!
            if (typeof this.overlayOpacity == "undefined") {
                var that = this;
                setTimeout(function() { that.show(modal) }, 10);
                return;
            }
            Windows.addModalWindow(this);

            this.modal = true;
            this.setZIndex(Windows.maxZIndex + 1);
            Windows.unsetOverflow(this);
        }
        else
            if (!this.element.style.zIndex)
            this.setZIndex(Windows.maxZIndex + 1);

        // To restore overflow if need be
        if (this.oldStyle)
            this.getContent().setStyle({ overflow: this.oldStyle });

        this.computeBounds();

        this._notify("onBeforeShow");
        if (this.options.showEffect != Element.show && this.options.showEffectOptions)
            this.options.showEffect(this.element, this.options.showEffectOptions);
        else
            this.options.showEffect(this.element);

        this._checkIEOverlapping();
        WindowUtilities.focusedWindow = this
        this._notify("onShow");
    },

    // Displays window modal state or not at the center of the page
    showCenter: function(modal, top, left) {
        this.centered = true;
        this.centerTop = top;
        this.centerLeft = left;

        this.show(modal);
    },

    isVisible: function() {
        return this.visible;
    },

    _center: function(top, left) {
        var windowScroll = WindowUtilities.getWindowScroll(this.options.parent);
        var pageSize = WindowUtilities.getPageSize(this.options.parent);
        if (typeof top == "undefined")
            top = (pageSize.windowHeight - (this.height + this.heightN + this.heightS)) / 2;
        top += windowScroll.top

        if (typeof left == "undefined")
            left = (pageSize.windowWidth - (this.width + this.widthW + this.widthE)) / 2;
        left += windowScroll.left
        this.setLocation(top, left);
        this.toFront();
    },

    _recenter: function(event) {
        if (this.centered) {
            var pageSize = WindowUtilities.getPageSize(this.options.parent);
            var windowScroll = WindowUtilities.getWindowScroll(this.options.parent);

            // Check for this stupid IE that sends dumb events
            if (this.pageSize && this.pageSize.windowWidth == pageSize.windowWidth && this.pageSize.windowHeight == pageSize.windowHeight &&
          this.windowScroll.left == windowScroll.left && this.windowScroll.top == windowScroll.top)
                return;
            this.pageSize = pageSize;
            this.windowScroll = windowScroll;
            // set height of Overlay to take up whole page and show
            if ($('overlay_modal'))
                $('overlay_modal').setStyle({ height: (pageSize.pageHeight + 'px') });

            if (this.options.recenterAuto)
                this._center(this.centerTop, this.centerLeft);
        }
    },

    // Hides window
    hide: function() {
        this.visible = false;
        if (this.modal) {
            Windows.removeModalWindow(this);
            Windows.resetOverflow();
        }
        // To avoid bug on scrolling bar
        this.oldStyle = this.getContent().getStyle('overflow') || "auto"
        this.getContent().setStyle({ overflow: "hidden" });

        this.options.hideEffect(this.element, this.options.hideEffectOptions);

        if (this.iefix)
            this.iefix.hide();

        if (!this.doNotNotifyHide)
            this._notify("onHide");
    },

    close: function() {
        // Asks closeCallback if exists
        if (this.visible) {
            if (this.options.closeCallback && !this.options.closeCallback(this))
                return;

            if (this.options.destroyOnClose) {
                var destroyFunc = this.destroy.bind(this);
                if (this.options.hideEffectOptions.afterFinish) {
                    var func = this.options.hideEffectOptions.afterFinish;
                    this.options.hideEffectOptions.afterFinish = function() { func(); destroyFunc() }
                }
                else
                    this.options.hideEffectOptions.afterFinish = function() { destroyFunc() }
            }
            Windows.updateFocusedWindow();

            this.doNotNotifyHide = true;
            this.hide();
            this.doNotNotifyHide = false;
            this._notify("onClose");
        }
    },

    minimize: function() {
        if (this.resizing)
            return;

        var r2 = $(this.getId() + "_row2");

        if (!this.minimized) {
            this.minimized = true;

            var dh = r2.getDimensions().height;
            this.r2Height = dh;
            var h = this.element.getHeight() - dh;

            if (this.useLeft && this.useTop && Window.hasEffectLib && Effect.ResizeWindow) {
                new Effect.ResizeWindow(this, null, null, null, this.height - dh, { duration: Window.resizeEffectDuration });
            } else {
                this.height -= dh;
                this.element.setStyle({ height: h + "px" });
                r2.hide();
            }

            if (!this.useTop) {
                var bottom = parseFloat(this.element.getStyle('bottom'));
                this.element.setStyle({ bottom: (bottom + dh) + 'px' });
            }
        }
        else {
            this.minimized = false;

            var dh = this.r2Height;
            this.r2Height = null;
            if (this.useLeft && this.useTop && Window.hasEffectLib && Effect.ResizeWindow) {
                new Effect.ResizeWindow(this, null, null, null, this.height + dh, { duration: Window.resizeEffectDuration });
            }
            else {
                var h = this.element.getHeight() + dh;
                this.height += dh;
                this.element.setStyle({ height: h + "px" })
                r2.show();
            }
            if (!this.useTop) {
                var bottom = parseFloat(this.element.getStyle('bottom'));
                this.element.setStyle({ bottom: (bottom - dh) + 'px' });
            }
            this.toFront();
        }
        this._notify("onMinimize");

        // Store new location/size if need be
        this._saveCookie()
    },

    maximize: function() {
        if (this.isMinimized() || this.resizing)
            return;

        if (Prototype.Browser.IE && this.heightN == 0)
            this._getWindowBorderSize();

        if (this.storedLocation != null) {
            this._restoreLocation();
            if (this.iefix)
                this.iefix.hide();
        }
        else {
            this._storeLocation();
            Windows.unsetOverflow(this);

            var windowScroll = WindowUtilities.getWindowScroll(this.options.parent);
            var pageSize = WindowUtilities.getPageSize(this.options.parent);
            var left = windowScroll.left;
            var top = windowScroll.top;

            if (this.options.parent != document.body) {
                windowScroll = { top: 0, left: 0, bottom: 0, right: 0 };
                var dim = this.options.parent.getDimensions();
                pageSize.windowWidth = dim.width;
                pageSize.windowHeight = dim.height;
                top = 0;
                left = 0;
            }

            if (this.constraint) {
                pageSize.windowWidth -= Math.max(0, this.constraintPad.left) + Math.max(0, this.constraintPad.right);
                pageSize.windowHeight -= Math.max(0, this.constraintPad.top) + Math.max(0, this.constraintPad.bottom);
                left += Math.max(0, this.constraintPad.left);
                top += Math.max(0, this.constraintPad.top);
            }

            var width = pageSize.windowWidth - this.widthW - this.widthE;
            var height = pageSize.windowHeight - this.heightN - this.heightS;

            if (this.useLeft && this.useTop && Window.hasEffectLib && Effect.ResizeWindow) {
                new Effect.ResizeWindow(this, top, left, width, height, { duration: Window.resizeEffectDuration });
            }
            else {
                this.setSize(width, height);
                this.element.setStyle(this.useLeft ? { left: left} : { right: left });
                this.element.setStyle(this.useTop ? { top: top} : { bottom: top });
            }

            this.toFront();
            if (this.iefix)
                this._fixIEOverlapping();
        }
        this._notify("onMaximize");

        // Store new location/size if need be
        this._saveCookie()
    },

    isMinimized: function() {
        return this.minimized;
    },

    isMaximized: function() {
        return (this.storedLocation != null);
    },

    setOpacity: function(opacity) {
        if (Element.setOpacity)
            Element.setOpacity(this.element, opacity);
    },

    setZIndex: function(zindex) {
        this.element.setStyle({ zIndex: zindex });
        Windows.updateZindex(zindex, this);
    },

    setTitle: function(newTitle) {
        if (!newTitle || newTitle == "")
            newTitle = "&nbsp;";

        Element.update(this.element.id + '_top', newTitle);
    },

    getTitle: function() {
        return $(this.element.id + '_top').innerHTML;
    },

    setStatusBar: function(element) {
        var statusBar = $(this.getId() + "_bottom");

        if (typeof (element) == "object") {
            if (this.bottombar.firstChild)
                this.bottombar.replaceChild(element, this.bottombar.firstChild);
            else
                this.bottombar.appendChild(element);
        }
        else
            this.bottombar.innerHTML = element;
    },

    _checkIEOverlapping: function() {
        if (!this.iefix && (navigator.appVersion.indexOf('MSIE') > 0) && (navigator.userAgent.indexOf('Opera') < 0) && (this.element.getStyle('position') == 'absolute')) {
            new Insertion.After(this.element.id, '<iframe id="' + this.element.id + '_iefix" ' + 'style="display:none;position:absolute;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);" ' + 'src="javascript:false;" frameborder="0" scrolling="no"></iframe>');
            this.iefix = $(this.element.id + '_iefix');
        }
        if (this.iefix)
            setTimeout(this._fixIEOverlapping.bind(this), 50);
    },

    _fixIEOverlapping: function() {
        Position.clone(this.element, this.iefix);
        this.iefix.style.zIndex = this.element.style.zIndex - 1;
        this.iefix.show();
    },

    _getWindowBorderSize: function(event) {
        // Hack to get real window border size!!
        var div = this._createHiddenDiv(this.options.className + "_n")
        this.heightN = Element.getDimensions(div).height;
        div.parentNode.removeChild(div)

        var div = this._createHiddenDiv(this.options.className + "_s")
        this.heightS = Element.getDimensions(div).height;
        div.parentNode.removeChild(div)

        var div = this._createHiddenDiv(this.options.className + "_e")
        this.widthE = Element.getDimensions(div).width;
        div.parentNode.removeChild(div)

        var div = this._createHiddenDiv(this.options.className + "_w")
        this.widthW = Element.getDimensions(div).width;
        div.parentNode.removeChild(div);

        var div = document.createElement("div");
        div.className = "overlay_" + this.options.className;
        document.body.appendChild(div);
        //alert("no timeout:\nopacity: " + div.getStyle("opacity") + "\nwidth: " + document.defaultView.getComputedStyle(div, null).width);
        var that = this;

        // Workaround for Safari!!
        setTimeout(function() { that.overlayOpacity = ($(div).getStyle("opacity")); div.parentNode.removeChild(div); }, 10);

        // Workaround for IE!!
        if (Prototype.Browser.IE) {
            this.heightS = $(this.getId() + "_row3").getDimensions().height;
            this.heightN = $(this.getId() + "_row1").getDimensions().height;
        }

        // Safari size fix
        if (Prototype.Browser.WebKit && Prototype.Browser.WebKitVersion < 420)
            this.setSize(this.width, this.height);
        if (this.doMaximize)
            this.maximize();
        if (this.doMinimize)
            this.minimize();
    },

    _createHiddenDiv: function(className) {
        var objBody = document.body;
        var win = document.createElement("div");
        win.setAttribute('id', this.element.id + "_tmp");
        win.className = className;
        win.style.display = 'none';
        win.innerHTML = '';
        objBody.insertBefore(win, objBody.firstChild);
        return win;
    },

    _storeLocation: function() {
        if (this.storedLocation == null) {
            this.storedLocation = { useTop: this.useTop, useLeft: this.useLeft,
                top: this.element.getStyle('top'), bottom: this.element.getStyle('bottom'),
                left: this.element.getStyle('left'), right: this.element.getStyle('right'),
                width: this.width, height: this.height
            };
        }
    },

    _restoreLocation: function() {
        if (this.storedLocation != null) {
            this.useLeft = this.storedLocation.useLeft;
            this.useTop = this.storedLocation.useTop;

            if (this.useLeft && this.useTop && Window.hasEffectLib && Effect.ResizeWindow)
                new Effect.ResizeWindow(this, this.storedLocation.top, this.storedLocation.left, this.storedLocation.width, this.storedLocation.height, { duration: Window.resizeEffectDuration });
            else {
                this.element.setStyle(this.useLeft ? { left: this.storedLocation.left} : { right: this.storedLocation.right });
                this.element.setStyle(this.useTop ? { top: this.storedLocation.top} : { bottom: this.storedLocation.bottom });
                this.setSize(this.storedLocation.width, this.storedLocation.height);
            }

            Windows.resetOverflow();
            this._removeStoreLocation();
        }
    },

    _removeStoreLocation: function() {
        this.storedLocation = null;
    },

    _saveCookie: function() {
        if (this.cookie) {
            var value = "";
            if (this.useLeft)
                value += "l:" + (this.storedLocation ? this.storedLocation.left : this.element.getStyle('left'))
            else
                value += "r:" + (this.storedLocation ? this.storedLocation.right : this.element.getStyle('right'))
            if (this.useTop)
                value += ",t:" + (this.storedLocation ? this.storedLocation.top : this.element.getStyle('top'))
            else
                value += ",b:" + (this.storedLocation ? this.storedLocation.bottom : this.element.getStyle('bottom'))

            value += "," + (this.storedLocation ? this.storedLocation.width : this.width);
            value += "," + (this.storedLocation ? this.storedLocation.height : this.height);
            value += "," + this.isMinimized();
            value += "," + this.isMaximized();
            WindowUtilities.setCookie(value, this.cookie)
        }
    },

    _createWiredElement: function() {
        if (!this.wiredElement) {
            if (Prototype.Browser.IE)
                this._getWindowBorderSize();
            var div = document.createElement("div");
            div.className = "wired_frame " + this.options.className + "_wired_frame";

            div.style.position = 'absolute';
            this.options.parent.insertBefore(div, this.options.parent.firstChild);
            this.wiredElement = $(div);
        }
        if (this.useLeft)
            this.wiredElement.setStyle({ left: this.element.getStyle('left') });
        else
            this.wiredElement.setStyle({ right: this.element.getStyle('right') });

        if (this.useTop)
            this.wiredElement.setStyle({ top: this.element.getStyle('top') });
        else
            this.wiredElement.setStyle({ bottom: this.element.getStyle('bottom') });

        var dim = this.element.getDimensions();
        this.wiredElement.setStyle({ width: dim.width + "px", height: dim.height + "px" });

        this.wiredElement.setStyle({ zIndex: Windows.maxZIndex + 30 });
        return this.wiredElement;
    },

    _hideWiredElement: function() {
        if (!this.wiredElement || !this.currentDrag)
            return;
        if (this.currentDrag == this.element)
            this.currentDrag = null;
        else {
            if (this.useLeft)
                this.element.setStyle({ left: this.currentDrag.getStyle('left') });
            else
                this.element.setStyle({ right: this.currentDrag.getStyle('right') });

            if (this.useTop)
                this.element.setStyle({ top: this.currentDrag.getStyle('top') });
            else
                this.element.setStyle({ bottom: this.currentDrag.getStyle('bottom') });

            this.currentDrag.hide();
            this.currentDrag = null;
            if (this.doResize)
                this.setSize(this.width, this.height);
        }
    },

    _notify: function(eventName) {
        if (this.options[eventName])
            this.options[eventName](this);
        else
            Windows.notify(eventName, this);
    }
};

// Windows containers, register all page windows
var Windows = {
  windows: [],
  modalWindows: [],
  observers: [],
  focusedWindow: null,
  maxZIndex: 0,
  overlayShowEffectOptions: {duration: 0.5},
  overlayHideEffectOptions: {duration: 0.5},

  addObserver: function(observer) {
    this.removeObserver(observer);
    this.observers.push(observer);
  },
  
  removeObserver: function(observer) {  
    this.observers = this.observers.reject( function(o) { return o==observer });
  },
  
  // onDestroy onStartResize onStartMove onResize onMove onEndResize onEndMove onFocus onBlur onBeforeShow onShow onHide onMinimize onMaximize onClose
  notify: function(eventName, win) {  
    this.observers.each( function(o) {if(o[eventName]) o[eventName](eventName, win);});
  },

  // Gets window from its id
  getWindow: function(id) {
    return this.windows.detect(function(d) { return d.getId() ==id });
  },

  // Gets the last focused window
  getFocusedWindow: function() {
    return this.focusedWindow;
  },

  updateFocusedWindow: function() {
    this.focusedWindow = this.windows.length >=2 ? this.windows[this.windows.length-2] : null;    
  },
  
  // Registers a new window (called by Windows constructor)
  register: function(win) {
    this.windows.push(win);
  },
    
  // Add a modal window in the stack
  addModalWindow: function(win) {
    // Disable screen if first modal window
    if (this.modalWindows.length == 0) {
      WindowUtilities.disableScreen(win.options.className, 'overlay_modal', win.overlayOpacity, win.getId(), win.options.parent);
    }
    else {
      // Move overlay over all windows
      if (Window.keepMultiModalWindow) {
        $('overlay_modal').style.zIndex = Windows.maxZIndex + 1;
        Windows.maxZIndex += 1;
        WindowUtilities._hideSelect(this.modalWindows.last().getId());
      }
      // Hide current modal window
      else
        this.modalWindows.last().element.hide();
      // Fucking IE select issue
      WindowUtilities._showSelect(win.getId());
    }      
    this.modalWindows.push(win);    
  },
  
  removeModalWindow: function(win) {
    this.modalWindows.pop();
    
    // No more modal windows
    if (this.modalWindows.length == 0)
      WindowUtilities.enableScreen();     
    else {
      if (Window.keepMultiModalWindow) {
        this.modalWindows.last().toFront();
        WindowUtilities._showSelect(this.modalWindows.last().getId());        
      }
      else
        this.modalWindows.last().element.show();
    }
  },
  
  // Registers a new window (called by Windows constructor)
  register: function(win) {
    this.windows.push(win);
  },
  
  // Unregisters a window (called by Windows destructor)
  unregister: function(win) {
    this.windows = this.windows.reject(function(d) { return d==win });
  }, 
  
  // Closes all windows
  closeAll: function() {  
    this.windows.each( function(w) {Windows.close(w.getId())} );
  },
  
  closeAllModalWindows: function() {
    WindowUtilities.enableScreen();     
    this.modalWindows.each( function(win) {if (win) win.close()});    
  },

  // Minimizes a window with its id
  minimize: function(id, event) {
    var win = this.getWindow(id)
    if (win && win.visible)
      win.minimize();
    Event.stop(event);
  },
  
  // Maximizes a window with its id
  maximize: function(id, event) {
    var win = this.getWindow(id)
    if (win && win.visible)
      win.maximize();
    Event.stop(event);
  },

  // Closes a window with its id
  close: function(id, event) {
    var win = this.getWindow(id);
    if (win) 
      win.close();
    if (event)
      Event.stop(event);
  },
  
  blur: function(id) {
    var win = this.getWindow(id);  
    if (!win)
      return;
    if (win.options.blurClassName)
      win.changeClassName(win.options.blurClassName);
    if (this.focusedWindow == win)  
      this.focusedWindow = null;
    win._notify("onBlur");  
  },
  
  focus: function(id) {
    var win = this.getWindow(id);  
    if (!win)
      return;       
    if (this.focusedWindow)
      this.blur(this.focusedWindow.getId())

    if (win.options.focusClassName)
      win.changeClassName(win.options.focusClassName);  
    this.focusedWindow = win;
    win._notify("onFocus");
  },
  
  unsetOverflow: function(except) {    
    this.windows.each(function(d) { d.oldOverflow = d.getContent().getStyle("overflow") || "auto" ; d.getContent().setStyle({overflow: "hidden"}) });
    if (except && except.oldOverflow)
      except.getContent().setStyle({overflow: except.oldOverflow});
  },

  resetOverflow: function() {
    this.windows.each(function(d) { if (d.oldOverflow) d.getContent().setStyle({overflow: d.oldOverflow}) });
  },

  updateZindex: function(zindex, win) { 
    if (zindex > this.maxZIndex) {   
      this.maxZIndex = zindex;    
      if (this.focusedWindow) 
        this.blur(this.focusedWindow.getId())
    }
    this.focusedWindow = win;
    if (this.focusedWindow) 
      this.focus(this.focusedWindow.getId())
  }
};

var Dialog = {
  dialogId: null,
  onCompleteFunc: null,
  callFunc: null, 
  parameters: null, 
    
  confirm: function(content, parameters) {
    // Get Ajax return before
    if (content && typeof content != "string") {
      Dialog._runAjaxRequest(content, parameters, Dialog.confirm);
      return 
    }
    content = content || "";
    
    parameters = parameters || {};
    var okLabel = parameters.okLabel ? parameters.okLabel : "Ok";
    var cancelLabel = parameters.cancelLabel ? parameters.cancelLabel : "Cancel";

    // Backward compatibility
    parameters = Object.extend(parameters, parameters.windowParameters || {});
    parameters.windowParameters = parameters.windowParameters || {};

    parameters.className = parameters.className || "alert";

    var okButtonClass = "class ='" + (parameters.buttonClass ? parameters.buttonClass + " " : "") + " ok_button'" 
    var cancelButtonClass = "class ='" + (parameters.buttonClass ? parameters.buttonClass + " " : "") + " cancel_button'" 
    var content = "\
      <div class='" + parameters.className + "_message'>" + content  + "</div>\
        <div class='" + parameters.className + "_buttons'>\
          <input type='button' value='" + okLabel + "' onclick='Dialog.okCallback()' " + okButtonClass + "/>\
          <input type='button' value='" + cancelLabel + "' onclick='Dialog.cancelCallback()' " + cancelButtonClass + "/>\
        </div>\
    ";
    return this._openDialog(content, parameters)
  },
  
  alert: function(content, parameters) {
    // Get Ajax return before
    if (content && typeof content != "string") {
      Dialog._runAjaxRequest(content, parameters, Dialog.alert);
      return 
    }
    content = content || "";
    
    parameters = parameters || {};
    var okLabel = parameters.okLabel ? parameters.okLabel : "Ok";

    // Backward compatibility    
    parameters = Object.extend(parameters, parameters.windowParameters || {});
    parameters.windowParameters = parameters.windowParameters || {};
    
    parameters.className = parameters.className || "alert";
    
    var okButtonClass = "class ='" + (parameters.buttonClass ? parameters.buttonClass + " " : "") + " ok_button'" 
    var content = "\
      <div class='" + parameters.className + "_message'>" + content  + "</div>\
        <div class='" + parameters.className + "_buttons'>\
          <input type='button' value='" + okLabel + "' onclick='Dialog.okCallback()' " + okButtonClass + "/>\
        </div>";                  
    return this._openDialog(content, parameters)
  },
  
  info: function(content, parameters) {   
    // Get Ajax return before
    if (content && typeof content != "string") {
      Dialog._runAjaxRequest(content, parameters, Dialog.info);
      return 
    }
    content = content || "";
     
    // Backward compatibility
    parameters = parameters || {};
    parameters = Object.extend(parameters, parameters.windowParameters || {});
    parameters.windowParameters = parameters.windowParameters || {};
    
    parameters.className = parameters.className || "alert";
    
    var content = "<div id='modal_dialog_message' class='" + parameters.className + "_message'>" + content  + "</div>";
    if (parameters.showProgress)
      content += "<div id='modal_dialog_progress' class='" + parameters.className + "_progress'>  </div>";

    parameters.ok = null;
    parameters.cancel = null;
    
    return this._openDialog(content, parameters)
  },
  
  setInfoMessage: function(message) {
    $('modal_dialog_message').update(message);
  },
  
  closeInfo: function() {
    Windows.close(this.dialogId);
  },
  
  _openDialog: function(content, parameters) {
    var className = parameters.className;
    
    if (! parameters.height && ! parameters.width) {
      parameters.width = WindowUtilities.getPageSize(parameters.options.parent || document.body).pageWidth / 2;
    }
    if (parameters.id)
      this.dialogId = parameters.id;
    else { 
      var t = new Date();
      this.dialogId = 'modal_dialog_' + t.getTime();
      parameters.id = this.dialogId;
    }

    // compute height or width if need be
    if (! parameters.height || ! parameters.width) {
      var size = WindowUtilities._computeSize(content, this.dialogId, parameters.width, parameters.height, 5, className)
      if (parameters.height)
        parameters.width = size + 5
      else
        parameters.height = size + 5
    }
    parameters.effectOptions = parameters.effectOptions ;
    parameters.resizable   = parameters.resizable || false;
    parameters.minimizable = parameters.minimizable || false;
    parameters.maximizable = parameters.maximizable ||  false;
    parameters.draggable   = parameters.draggable || false;
    parameters.closable    = parameters.closable || false;
    
    var win = new Window(parameters);
    win.getContent().innerHTML = content;
    
    win.showCenter(true, parameters.top, parameters.left);  
    win.setDestroyOnClose();
    
    win.cancelCallback = parameters.onCancel || parameters.cancel; 
    win.okCallback = parameters.onOk || parameters.ok;
    
    return win;    
  },
  
  _getAjaxContent: function(originalRequest)  {
      Dialog.callFunc(originalRequest.responseText, Dialog.parameters)
  },
  
  _runAjaxRequest: function(message, parameters, callFunc) {
    if (message.options == null)
      message.options = {}  
    Dialog.onCompleteFunc = message.options.onComplete;
    Dialog.parameters = parameters;
    Dialog.callFunc = callFunc;
    
    message.options.onComplete = Dialog._getAjaxContent;
    new Ajax.Request(message.url, message.options);
  },
  
  okCallback: function() {
    var win = Windows.focusedWindow;
    if (!win.okCallback || win.okCallback(win)) {
      // Remove onclick on button
      $$("#" + win.getId()+" input").each(function(element) {element.onclick=null;})
      win.close();
    }
  },

  cancelCallback: function() {
    var win = Windows.focusedWindow;
    // Remove onclick on button
    $$("#" + win.getId()+" input").each(function(element) {element.onclick=null})
    win.close();
    if (win.cancelCallback)
      win.cancelCallback(win);
  }
}
/*
  Based on Lightbox JS: Fullsize Image Overlays 
  by Lokesh Dhakar - http://www.huddletogether.com

  For more information on this script, visit:
  http://huddletogether.com/projects/lightbox/

  Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/
  (basically, do anything you want, just leave my name and link)
*/

if (Prototype.Browser.WebKit) {
  var array = navigator.userAgent.match(new RegExp(/AppleWebKit\/([\d\.\+]*)/));
  Prototype.Browser.WebKitVersion = parseFloat(array[1]);
}

var WindowUtilities = {  
  // From dragdrop.js
  getWindowScroll: function(parent) {
    var T, L, W, H;
    parent = parent || document.body;              
    if (parent != document.body) {
      T = parent.scrollTop;
      L = parent.scrollLeft;
      W = parent.scrollWidth;
      H = parent.scrollHeight;
    } 
    else {
      var w = window;
      with (w.document) {
        if (w.document.documentElement && documentElement.scrollTop) {
          T = documentElement.scrollTop;
          L = documentElement.scrollLeft;
        } else if (w.document.body) {
          T = body.scrollTop;
          L = body.scrollLeft;
        }
        if (w.innerWidth) {
          W = w.innerWidth;
          H = w.innerHeight;
        } else if (w.document.documentElement && documentElement.clientWidth) {
          W = documentElement.clientWidth;
          H = documentElement.clientHeight;
        } else {
          W = body.offsetWidth;
          H = body.offsetHeight
        }
      }
    }
    return { top: T, left: L, width: W, height: H };
  }, 
  //
  // getPageSize()
  // Returns array with page width, height and window width, height
  // Core code from - quirksmode.org
  // Edit for Firefox by pHaez
  //
  getPageSize: function(parent){
    parent = parent || document.body;              
    var windowWidth, windowHeight;
    var pageHeight, pageWidth;
    if (parent != document.body) {
      windowWidth = parent.getWidth();
      windowHeight = parent.getHeight();                                
      pageWidth = parent.scrollWidth;
      pageHeight = parent.scrollHeight;                                
    } 
    else {
      var xScroll, yScroll;

      if (window.innerHeight && window.scrollMaxY) {  
        xScroll = document.body.scrollWidth;
        yScroll = window.innerHeight + window.scrollMaxY;
      } else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
        xScroll = document.body.scrollWidth;
        yScroll = document.body.scrollHeight;
      } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
        xScroll = document.body.offsetWidth;
        yScroll = document.body.offsetHeight;
      }


      if (self.innerHeight) {  // all except Explorer
        windowWidth = self.innerWidth;
        windowHeight = self.innerHeight;
      } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
        windowWidth = document.documentElement.clientWidth;
        windowHeight = document.documentElement.clientHeight;
      } else if (document.body) { // other Explorers
        windowWidth = document.body.clientWidth;
        windowHeight = document.body.clientHeight;
      }  

      // for small pages with total height less then height of the viewport
      if(yScroll < windowHeight){
        pageHeight = windowHeight;
      } else { 
        pageHeight = yScroll;
      }

      // for small pages with total width less then width of the viewport
      if(xScroll < windowWidth){  
        pageWidth = windowWidth;
      } else {
        pageWidth = xScroll;
      }
    }             
    return {pageWidth: pageWidth ,pageHeight: pageHeight , windowWidth: windowWidth, windowHeight: windowHeight};
  },

  disableScreen: function(className, overlayId, overlayOpacity, contentId, parent) {
    WindowUtilities.initLightbox(overlayId, className, function() {this._disableScreen(className, overlayId, overlayOpacity, contentId)}.bind(this), parent || document.body);
  },

  _disableScreen: function(className, overlayId, overlayOpacity, contentId) {
    // prep objects
    var objOverlay = $(overlayId);

    var pageSize = WindowUtilities.getPageSize(objOverlay.parentNode);

    // Hide select boxes as they will 'peek' through the image in IE, store old value
    if (contentId && Prototype.Browser.IE) {
      WindowUtilities._hideSelect();
      WindowUtilities._showSelect(contentId);
    }  
  
    // set height of Overlay to take up whole page and show
    objOverlay.style.height = (pageSize.pageHeight + 'px');
    objOverlay.style.display = 'none'; 
    if (overlayId == "overlay_modal" && Window.hasEffectLib && Windows.overlayShowEffectOptions) {
      objOverlay.overlayOpacity = overlayOpacity;
      new Effect.Appear(objOverlay, Object.extend({from: 0, to: overlayOpacity}, Windows.overlayShowEffectOptions));
    }
    else
      objOverlay.style.display = "block";
  },
  
  enableScreen: function(id) {
    id = id || 'overlay_modal';
    var objOverlay =  $(id);
    if (objOverlay) {
      // hide lightbox and overlay
      if (id == "overlay_modal" && Window.hasEffectLib && Windows.overlayHideEffectOptions)
        new Effect.Fade(objOverlay, Object.extend({from: objOverlay.overlayOpacity, to:0}, Windows.overlayHideEffectOptions));
      else {
        objOverlay.style.display = 'none';
        objOverlay.parentNode.removeChild(objOverlay);
      }
      
      // make select boxes visible using old value
      if (id != "__invisible__") 
        WindowUtilities._showSelect();
    }
  },

  _hideSelect: function(id) {
    if (Prototype.Browser.IE) {
      id = id ==  null ? "" : "#" + id + " ";
      $$(id + 'select').each(function(element) {
        if (! WindowUtilities.isDefined(element.oldVisibility)) {
          element.oldVisibility = element.style.visibility ? element.style.visibility : "visible";
          element.style.visibility = "hidden";
        }
      });
    }
  },
  
  _showSelect: function(id) {
    if (Prototype.Browser.IE) {
      id = id ==  null ? "" : "#" + id + " ";
      $$(id + 'select').each(function(element) {
        if (WindowUtilities.isDefined(element.oldVisibility)) {
          // Why?? Ask IE
          try {
            element.style.visibility = element.oldVisibility;
          } catch(e) {
            element.style.visibility = "visible";
          }
          element.oldVisibility = null;
        }
        else {
          if (element.style.visibility)
            element.style.visibility = "visible";
        }
      });
    }
  },

  isDefined: function(object) {
    return typeof(object) != "undefined" && object != null;
  },
  
  // initLightbox()
  // Function runs on window load, going through link tags looking for rel="lightbox".
  // These links receive onclick events that enable the lightbox display for their targets.
  // The function also inserts html markup at the top of the page which will be used as a
  // container for the overlay pattern and the inline image.
  initLightbox: function(id, className, doneHandler, parent) {
    // Already done, just update zIndex
    if ($(id)) {
      Element.setStyle(id, {zIndex: Windows.maxZIndex + 1});
      Windows.maxZIndex++;
      doneHandler();
    }
    // create overlay div and hardcode some functional styles (aesthetic styles are in CSS file)
    else {
      var objOverlay = document.createElement("div");
      objOverlay.setAttribute('id', id);
      objOverlay.className = "overlay_" + className
      objOverlay.style.display = 'none';
      objOverlay.style.position = 'absolute';
      objOverlay.style.top = '0';
      objOverlay.style.left = '0';
      objOverlay.style.zIndex = Windows.maxZIndex + 1;
      Windows.maxZIndex++;
      objOverlay.style.width = '100%';
      parent.insertBefore(objOverlay, parent.firstChild);
      if (Prototype.Browser.WebKit && id == "overlay_modal") {
        setTimeout(function() {doneHandler()}, 10);
      }
      else
        doneHandler();
    }    
  },
  
  setCookie: function(value, parameters) {
    document.cookie= parameters[0] + "=" + escape(value) +
      ((parameters[1]) ? "; expires=" + parameters[1].toGMTString() : "") +
      ((parameters[2]) ? "; path=" + parameters[2] : "") +
      ((parameters[3]) ? "; domain=" + parameters[3] : "") +
      ((parameters[4]) ? "; secure" : "");
  },

  getCookie: function(name) {
    var dc = document.cookie;
    var prefix = name + "=";
    var begin = dc.indexOf("; " + prefix);
    if (begin == -1) {
      begin = dc.indexOf(prefix);
      if (begin != 0) return null;
    } else {
      begin += 2;
    }
    var end = document.cookie.indexOf(";", begin);
    if (end == -1) {
      end = dc.length;
    }
    return unescape(dc.substring(begin + prefix.length, end));
  },
    
  _computeSize: function(content, id, width, height, margin, className) {
    var objBody = document.body;
    var tmpObj = document.createElement("div");
    tmpObj.setAttribute('id', id);
    tmpObj.className = className + "_content";

    if (height)
      tmpObj.style.height = height + "px"
    else
      tmpObj.style.width = width + "px"
  
    tmpObj.style.position = 'absolute';
    tmpObj.style.top = '0';
    tmpObj.style.left = '0';
    tmpObj.style.display = 'none';

    tmpObj.innerHTML = content;
    objBody.insertBefore(tmpObj, objBody.firstChild);

    var size;
    if (height)
      size = $(tmpObj).getDimensions().width + margin;
    else
      size = $(tmpObj).getDimensions().height + margin;
    objBody.removeChild(tmpObj);
    return size;
  }  
}