var Window = Class.create();

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

Window.prototype = {
    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:         false,
            closable:          true,
            minimizable:       false,
            maximizable:       false,
            draggable:         false,
            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:    true,
            gridX:             1,
            gridY:             1,
            onCancel:     null,
            onOk:     null,
			ElementID: null
        }, 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);
    }
    ,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);
    }
    ,setCloseCallback: function(callback) {
        this.options.closeCallback = callback;
    }
    ,getContent: function () {
        return this.content;
    }
    ,setContent: function(id, autoresize, autoposition) {
		this.ElementID = id;
		var element = $(id);
        
        // on met en place le OK et cancel
        //if ($('btok')) {
        if ($(id+'_'+'btok')) {
            if (this.options.onOk) {
                //$('btok').onclick=this.options.onOk;
                $(id+'_'+'btok').onclick=this.options.onOk;
            }
        }
        //if ($('btcancel')) {
        if ($(id+'_'+'btcancel')) {
            if (this.options.onCancel) {
                //$('btcancel').onclick=this.options.onCancel;
                $(id+'_'+'btcancel').onclick=this.options.onCancel;
            }
        }

        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;
    }
    ,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]});
        }
    }
    ,getId: function() {
        return this.element.id;
    }
    ,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: 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: 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");
        } 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: 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;
    }
    ,_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 closeDiv = this.options.closable ? '<li><a href="javascript:void(0);" id="'+ id +'_close" class="closebutton" title="Close" onclick="Windows.close(\''+ id +'\', event)"><span>Close</span></a></li>' : "";

        /*var minDiv = this.options.minimizable ? "<div class='"+ className + "_minimize' id='"+ id +"_minimize' onclick='Windows.minimize(\""+ id +"\", event)'> </div>" : "";*/
        var minDiv = this.options.minimizable ? '<li><a href="javascript:void(0);" id="'+ id +'_minimize" class="minimizebutton" title="Minimize" onclick="Windows.minimize(\''+ id +'\', event)"><span>Minimize</span></a></li>' : "";

        /*var maxDiv = this.options.maximizable ? "<div class='"+ className + "_maximize' id='"+ id +"_maximize' onclick='Windows.maximize(\""+ id +"\", event)'> </div>" : "";*/
        var maxDiv = this.options.maximizable ? '<li><a href="javascript:void(0);" id="'+ id +'_maximize" class="maximizebutton" title="Maximize" onclick="Windows.maximize(\''+ id +'\', event)"><span>Maximize</span></a></li>' : "";

        var seAttributes = this.options.resizable ? "class='" + className + "_sizer' id='" + id + "_sizer'" : "class='"  + className + "_se'";
        var blank = "../themes/default/blank.gif";

        win.innerHTML = '\
        <table id="'+ id +'_row1" class="top table_window">\
        <tr>\
        <td class="'+ className +'_nw"></td>\
        <td class="'+ className +'_n">\
        <div id="'+ id +'_top" class="topresize"></div>\
        <table cellspacing="0" cellpadding="0" align="left" class="titlebarcontrols">\
        <tr>\
        <td style="padding-left: 7px;">\
        <em>'+ this.options.title +'</em>\
        </td>\
        <td nowrap="" style="white-space: nowrap;">\
        <ul class="controlbuttons">\
        '+minDiv+maxDiv+closeDiv+'\
        </ul>\
        </td>\
        </tr>\
        </table>\
        </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);
        }
    }
    ,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;
    }
    ,getSize: function() {
        return {width: this.width, height: this.height};
    }
    ,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);
    }
    ,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);
    }
    ,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");
    }
    ,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);
        }
    }
    ,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");
			if (this.ElementID) {
				$(this.ElementID).hide();
			}
        }
    }
    ,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'});
            }

            var r1 = $(this.getId() + "_row1");
            r1.addClassName('minimizedwindow');
        } 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();

            var r1 = $(this.getId() + "_row1");
            r1.removeClassName('minimizedwindow');
        }
        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();

            var r1 = $(this.getId() + "_row1");
            r1.removeClassName('maximizedwindow');
        } 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();

            var r1 = $(this.getId() + "_row1");
            r1.addClassName('maximizedwindow');
        }
        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.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 });
    }
    ,notify: function(eventName, win) {
        this.observers.each( function(o) {if(o[eventName]) o[eventName](eventName, win);});
    }
    ,getWindow: function(id) {
        return this.windows.detect(function(d) { return d.getId() ==id });
    }
    ,getFocusedWindow: function() {
        return this.focusedWindow;
    }
    ,updateFocusedWindow: function() {
        this.focusedWindow = this.windows.length >=2 ? this.windows[this.windows.length-2] : null;
    }
    ,register: function(win) {
        this.windows.push(win);
    }
    ,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());
            } 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();
        }
    }
    ,register: function(win) {
        this.windows.push(win);
    }
    ,unregister: function(win) {
        this.windows = this.windows.reject(function(d) { return d==win });
    }
    ,closeAll: function() {
        this.windows.each( function(w) {Windows.close(w.getId())} );
    }
    ,closeAllModalWindows: function() {
        WindowUtilities.enableScreen();
        this.modalWindows.each( function(win) {if (win) win.close()});
    }
    ,minimize: function(id, event) {
        var win = this.getWindow(id)
        if (win && win.visible)
            win.minimize();
        Event.stop(event);
    }
    ,maximize: function(id, event) {
        var win = this.getWindow(id)
        if (win && win.visible)
            win.maximize();
        Event.stop(event);
    }
    ,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())
    }
};

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

var WindowUtilities = {
    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: 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(id, className, doneHandler, parent) {
        // Already done, just update zIndex
        if ($(id)) {
            Element.setStyle(id, {zIndex: Windows.maxZIndex + 1});
            Windows.maxZIndex++;
            doneHandler();
        } else { // create overlay div and hardcode some functional styles (aesthetic styles are in CSS file)
            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;
    }
};