/** initializes the structure
 *
 *  THE SETTINGS CAN BE CHANGED IN THIS FUNCTION (E.G. DELAY OR POSITIONS)
 *
 */
function initStructure() {
    var menu1 = new XulMenu("menu1");
    
    arrow1_src = "/fm/1002/mainmenu_arrow_inactive.gif";
    arrow2_src = "/fm/1002/mainmenu_arrow_active.gif";
    menu1.arrow1 = arrow1_src;
    menu1.arrow2 = arrow2_src;
    
    menu1.position.levelX.left = -5;
    menu1.position.levelX.top = -2;
    
    menu1.delay.show = 200;
    menu1.delay.hide = 400;
    
    menu1.init();
}

// helper vars for usage in the structure
var arrow1_src;
var arrow2_src;


// THE FOLLOWING CODE IS TAKEN FROM THE OPEN SOURCE LIBRARY "MYGOSUMENU":


// +----------------------------------------------------------------+
// | Array functions that are missing in IE 5.0                     |
// | Author: Cezary Tomczak [www.gosu.pl]                           |
// | Free for any use as long as all copyright messages are intact. |
// +----------------------------------------------------------------+

// Removes the last element from an array and returns that element.
if (!Array.prototype.pop) {
    Array.prototype.pop = function() {
        var last;
        if (this.length) {
            last = this[this.length - 1];
            this.length -= 1;
        }
        return last;
    };
}

// Adds one or more elements to the end of an array and returns the new length of the array.
if (!Array.prototype.push) {
    Array.prototype.push = function() {
        for (var i = 0; i < arguments.length; ++i) {
            this[this.length] = arguments[i];
        }
        return this.length;
    };
}

// Removes the first element from an array and returns that element.
if (!Array.prototype.shift) {
    Array.prototype.shift = function() {
        var first;
        if (this.length) {
            first = this[0];
            for (var i = 0; i < this.length - 1; ++i) {
                this[i] = this[i + 1];
            }
            this.length -= 1;
        }
        return first;
    };
}

// Adds one or more elements to the front of an array and returns the new length of the array.
if (!Array.prototype.unshift) {
    Array.prototype.unshift = function() {
        if (arguments.length) {
            var i, len = arguments.length;
            for (i = this.length + len - 1; i >= len; --i) {
                this[i] = this[i - len];
            }
            for (i = 0; i < len; ++i) {
                this[i] = arguments[i];
            }
        }
        return this.length;
    };
}

// Adds and/or removes elements from an array.
if (!Array.prototype.splice) {
    Array.prototype.splice = function(index, howMany) {
        var elements = [], removed = [], i;
        for (i = 2; i < arguments.length; ++i) {
            elements.push(arguments[i]);
        }
        for (i = index; (i < index + howMany) && (i < this.length); ++i) {
            removed.push(this[i]);
        }
        for (i = index + howMany; i < this.length; ++i) {
            this[i - howMany] = this[i];
        }
        this.length -= removed.length;
        for (i = this.length + elements.length - 1; i >= index + elements.length; --i) {
            this[i] = this[i - elements.length];
        }
        for (i = 0; i < elements.length; ++i) {
            this[index + i] = elements[i];
        }
        return removed;
    };
}



/*
 * DO NOT REMOVE THIS NOTICE
 *
 * PROJECT:   mygosuMenu
 * VERSION:   1.4.2
 * COPYRIGHT: (c) 2003,2004 Cezary Tomczak
 * LINK:      http://gosu.pl/dhtml/mygosumenu.html
 * LICENSE:   BSD (revised)
 */

function XulMenu(id) {
    
	/* Delay (in miliseconds >= 0): show-hide menu
     * Hide must be > 0 */
    this.delay = {
        "show": 0,
        "hide": 400
    }

    this.type = "horizontal";
    
    this.position = {
        "level1": { "top": 0, "left": 0},
        "levelX": { "top": 0, "left": 0}
    }
    this.zIndex = {
        "visible": 500,
        "hidden": -1
    }
    
    this.arrow1 = null;
    this.arrow2 = null;

    /* fix ie selectbox bug ? */
    this.fixIeSelectBoxBug = true;

    // Browser detection
    this.browser = {
        "ie": Boolean(document.body.currentStyle),
        "ie5": (navigator.appVersion.indexOf("MSIE 5.5") != -1 || navigator.appVersion.indexOf("MSIE 5.0") != -1),
        "ie50": (navigator.appVersion.indexOf("MSIE 5.0") != -1),
        "ie6": (navigator.appVersion.indexOf("MSIE 6.0") != -1),
        "ie556" : (navigator.appVersion.indexOf("MSIE 6.0") != -1 || navigator.appVersion.indexOf("MSIE 5.5") != -1)
    };
    
    if (!this.browser.ie) {
        this.browser.ie5 = false;
        this.browser.ie6 = false;
    }

    /* Initialize the menu */
    this.init = function() {
        if (!document.getElementById(this.id)) { 
        	return;
        	// alert("DropDownMenuX.init() failed. Element '"+ this.id +"' does not exist."); 
		}
        if (this.type != "horizontal" && this.type != "vertical") { 
        	return; 
        	//alert("DropDownMenuX.init() failed. Unknown menu type: '"+this.type+"'"); 
		}
        if (this.browser.ie && this.browser.ie5) { fixWrap(); }
        fixSections();
        parse(document.getElementById(this.id).childNodes, this.tree, this.id);
    }

    /* Search for .section elements and set width for them */
    function fixSections() {
        var arr = document.getElementById(self.id).getElementsByTagName("div");
        var sections = new Array();
        var widths = new Array();
        
        for (var i = 0; i < arr.length; i++) {
            if (arr[i].className == "section") {
                sections.push(arr[i]);
            }
        }
        for (var i = 0; i < sections.length; i++) {
            widths.push(getMaxWidth(sections[i].childNodes));
        }
        for (var i = 0; i < sections.length; i++) {
            sections[i].style.width = (widths[i]) + "px";
        }
        if (self.browser.ie) {
            for (var i = 0; i < sections.length; i++) {
                setMaxWidth(sections[i].childNodes, widths[i]);
            }
        }
    }

    function fixWrap() {
        var elements = document.getElementById(self.id).getElementsByTagName("a");
        for (var i = 0; i < elements.length; i++) {
            if (/item2/.test(elements[i].className)) {
                elements[i].innerHTML = '<div nowrap="nowrap">'+elements[i].innerHTML+'</div>';
            }
        }
    }

    /* Search for an element with highest width among given nodes, return that width */
    function getMaxWidth(nodes) {
        var maxWidth = 0;
        for (var i = 0; i < nodes.length; i++) {
            if (nodes[i].nodeType != 1 || /section/.test(nodes[i].className)) { continue; }
            if (nodes[i].offsetWidth > maxWidth) { maxWidth = nodes[i].offsetWidth; }
        }
        return maxWidth;
    }

    /* Set width for item2 elements */
    function setMaxWidth(nodes, maxWidth) {
        for (var i = 0; i < nodes.length; i++) {
            if (nodes[i].nodeType == 1 && /item2/.test(nodes[i].className) && nodes[i].currentStyle) {
                if (self.browser.ie5) {
                    nodes[i].style.width = (maxWidth) + "px";
                } else {
                    nodes[i].style.width = (maxWidth - parseInt(nodes[i].currentStyle.paddingLeft) - parseInt(nodes[i].currentStyle.paddingRight)) + "px";
                }
            }
        }
    }

    /* Parse nodes, create events, position elements */
    function parse(nodes, tree, id) {
        //alert(id);
    	for (var i = 0; i < nodes.length; i++) {
            if (nodes[i].nodeType != 1) { continue };
            switch (true) {
                case /\bbutton\b/.test(nodes[i].className):
                    nodes[i].id = id + "-" + tree.length;
                    tree.push(new Array());
                    nodes[i].onmouseover = itemOver;
                    nodes[i].onmouseout = itemOut;
                    
                    if (self.browser.ie50) {
                    	nodes[i].onmouseover = itemOverIE;
                    	nodes[i].onmouseout = itemOutIE;
                    }
                    
                    break;
                case /\bitem\b/.test(nodes[i].className):
                    nodes[i].id = id + "-" + tree.length;
                    tree.push(new Array());
                    nodes[i].onmouseover = itemOver;
                    nodes[i].onmouseout = itemOut;
                    
                    if (self.browser.ie50) {
                    	nodes[i].onmouseover = itemOverIE;
                    	nodes[i].onmouseout = itemOutIE;
                    }
                    
                    break;
                case /\bsection\b/.test(nodes[i].className):
                    
                	nodes[i].id = id + "-" + (tree.length - 1) + "-section";                    
					
                	if (self.browser.ie50) {                    
                		nodes[i].onmouseover = sectionOverIE;
                    	nodes[i].onmouseout = sectionOutIE;
                	} else {
                		nodes[i].onmouseover = sectionOver;
                    	nodes[i].onmouseout = sectionOut;
                	}
                    
                    var box1 = document.getElementById(id + "-" + (tree.length - 1));
                    var box2 = document.getElementById(nodes[i].id);
                    
                    var el = new Element(box1.id);
                    
                    if (1 == el.level) {
                        if ("horizontal" == self.type) {
                            
							box2.style.top = box1.offsetTop + box1.offsetHeight + self.position.level1.top + "px";
                            if (self.browser.ie5) {
                                box2.style.left = self.position.level1.left + "px";
                            } else {
                                box2.style.left = box1.offsetLeft + self.position.level1.left + "px";
                            }
                            
                        } else if ("vertical" == self.type) {
                            box2.style.top = box1.offsetTop + self.position.level1.top + "px";
                            if (self.browser.ie5) {
                                box2.style.left = box1.offsetWidth + self.position.level1.left + "px";
                            } else {
                                box2.style.left = box1.offsetLeft + box1.offsetWidth + self.position.level1.left + "px";
                            }
                        }
                    } else {
                        box2.style.top = box1.offsetTop + self.position.levelX.top + "px";
                        
                        if (self.browser.ie50) {
                        	box2.style.left = box1.offsetLeft + box1.offsetWidth - 15 + "px";
                        } else {
                        	box2.style.left = box1.offsetLeft + box1.offsetWidth + self.position.levelX.left + "px";
                        }
                        
                    }
                    // sections, sectionsShowCnt, sectionsHideCnt
                    self.sections.push(nodes[i].id);
                    self.sectionsShowCnt.push(0);
                    self.sectionsHideCnt.push(0);
                    
                    
                    if (self.fixIeSelectBoxBug && self.browser.ie556) {
                        nodes[i].innerHTML = nodes[i].innerHTML + '<iframe id="'+nodes[i].id+'-iframe" src="javascript:false;" scrolling="no" frameborder="0" style="position: absolute; top: 0px; left: 15px; display: none; filter:alpha(opacity=0);"></iframe>';
                    }
                    break;
                case /\barrow\b/.test(nodes[i].className):
                    nodes[i].id = id + "-" + (tree.length - 1) + "-arrow";
                    break;
            }
            if (nodes[i].childNodes) {
                if (/\bsection\b/.test(nodes[i].className)) {                	
                	parse(nodes[i].childNodes, tree[tree.length - 1], id + "-" + (tree.length - 1));
                } else {
                    parse(nodes[i].childNodes, tree, id);
                }
            }
        }
    }

    
    
    /** IE50 functions */
    
    
    /* event, item.onmouseover */
    function itemOverIE() {
        if (document.getElementById(this.id + "-arrow") != null) {
        	document.getElementById(this.id + "-arrow").src = arrow2_src;
        }
        
        self.itemShowCnt++;
        var id_section = this.id + "-section";
        if (self.visible.length) {
            var el = new Element(self.visible.getLast());
            el = document.getElementById(el.getParent().id);
            if (/item\d-active/.test(el.className)) {
                el.className = el.className.replace(/(item\d)-active/, "$1");
            }
        }
        if (self.sections.contains(id_section)) {                	
            self.sectionsHideCnt[self.sections.indexOf(id_section)]++;
            var cnt = self.sectionsShowCnt[self.sections.indexOf(id_section)];                        
        	self.showSection(id_section, cnt);        	                        
        } else {
            if (self.visible.length) {                                                  
            	self.showItem(this.id, self.itemShowCnt);	                        
            }
        }
    }


    var theCurrentId = '';
    var theCurrentCnt = '';
    
    function doNothing() {
    	self.hideSection(theCurrentId, theCurrentCnt); 
    }
    
    /* event, item.onmouseout */
    function itemOutIE() {
        // hide image
        if (document.getElementById(this.id + "-arrow") != null) {
        	document.getElementById(this.id + "-arrow").src = arrow1_src;
        }
        
        self.itemShowCnt++;
        var id_section = this.id + "-section";
        if (self.sections.contains(id_section)) {
            self.sectionsShowCnt[self.sections.indexOf(id_section)]++;
            if (self.visible.contains(id_section)) {
                var cnt = self.sectionsHideCnt[self.sections.indexOf(id_section)];            
            	theCurrentId = id_section;
            	theCurrentCnt = cnt;
                setTimeout("doNothing()", 200);                             
                //doNothing();
            }
        }
       
    }
    
    
    
    function sectionOverIE() {
        self.sectionsHideCnt[self.sections.indexOf(this.id)]++;
        var el = new Element(this.id);
        var parent = document.getElementById(el.getParent().id);
        if (!/item\d-active/.test(parent.className)) {
            parent.className = parent.className.replace(/(item\d)/, "$1-active");
        }
    }

    /* event, section:onmouseout */
    function sectionOutIE() {
        self.sectionsShowCnt[self.sections.indexOf(this.id)]++;
        var cnt = self.sectionsHideCnt[self.sections.indexOf(this.id)];        
    	theCurrentId = this.id;
        theCurrentCnt = cnt;
        setTimeout("doNothing()", 200);  
        //doNothing();            
    }       
    
    
    
    /**  normal functions  */
    
    
    
    
    /* event, item:onmouseover */
    function itemOver() {
        //debug("itemOver("+this.id+") , visible = " + self.visible);
        
        // swap the image
        if (document.getElementById(this.id + "-arrow") != null) {
        	document.getElementById(this.id + "-arrow").src = arrow2_src;
        }
        
        self.itemShowCnt++;
        var id_section = this.id + "-section";
        if (self.visible.length) {
            var el = new Element(self.visible.getLast());
            el = document.getElementById(el.getParent().id);
            if (/item\d-active/.test(el.className)) {
                el.className = el.className.replace(/(item\d)-active/, "$1");
            }
        }
        if (self.sections.contains(id_section)) {
        	clearTimers();
            self.sectionsHideCnt[self.sections.indexOf(id_section)]++;
            var cnt = self.sectionsShowCnt[self.sections.indexOf(id_section)];
                        
        	var timerId = setTimeout(function(a, b) { return function() { self.showSection(a, b); } } (id_section, cnt), self.delay.show);
        	self.timers.push(timerId);
            
            
        } else {
            if (self.visible.length) {
                           
            	clearTimers();
            	var timerId = setTimeout(function(a, b) { return function() { self.showItem(a, b); } } (this.id, self.itemShowCnt), self.delay.show);
            	self.timers.push(timerId);
	            
            
            }
        }
    }

    /* event, item:onmouseout */
    function itemOut() {
        //debug("itemOut("+this.id+") , visible = " + self.visible);
        
        // hide image
        if (document.getElementById(this.id + "-arrow") != null) {
        	document.getElementById(this.id + "-arrow").src = arrow1_src;
        }
        
        self.itemShowCnt++;
        var id_section = this.id + "-section";
        if (self.sections.contains(id_section)) {
            self.sectionsShowCnt[self.sections.indexOf(id_section)]++;
            if (self.visible.contains(id_section)) {
                var cnt = self.sectionsHideCnt[self.sections.indexOf(id_section)];
            
            	var timerId = setTimeout(function(a, b) { return function() { self.hideSection(a, b); } }(id_section, cnt), self.delay.hide);
            	self.timers.push(timerId);
                
                
            }
        }
    }
    
    /* event, item.onclick */
    function itemClick() {
        this.blur();
        var el = new Element(this.id);
        self.hideHigherOrEqualLevels(el.level);
        if (el.hasChilds()) {
            self.show(this.id);
        }
    }

    /* event, section:onmouseover */
    function sectionOver() {
        //debug("sectionOver("+this.id+") , visible = " + self.visible);
        self.sectionsHideCnt[self.sections.indexOf(this.id)]++;
        var el = new Element(this.id);
        var parent = document.getElementById(el.getParent().id);
        if (!/item\d-active/.test(parent.className)) {
            parent.className = parent.className.replace(/(item\d)/, "$1-active");
        }
    }

    /* event, section:onmouseout */
    function sectionOut() {
        //debug("sectionOut("+this.id+") , visible = " + self.visible);
        self.sectionsShowCnt[self.sections.indexOf(this.id)]++;
        var cnt = self.sectionsHideCnt[self.sections.indexOf(this.id)];
        
    	var timerId = setTimeout(function(a, b) { return function() { self.hideSection(a, b); } }(this.id, cnt), self.delay.hide);
    	self.timers.push(timerId);
        
        
    }   
    
    
    /* Show section (1 argument passed)
     * Try to show section (2 arguments passed) - check cnt with sectionShowCnt */
    this.showSection = function(id, cnt) {
    	if (typeof cnt != "undefined") {
            if (cnt != this.sectionsShowCnt[this.sections.indexOf(id)]) { return; }
        }
        //debug("showSection("+id+", "+cnt+") , visible = " + this.visible);
        this.sectionsShowCnt[this.sections.indexOf(id)]++;
        if (this.visible.length) {
            if (id == this.visible.getLast()) { return; }
            var el = new Element(id);
            var parents = el.getParentSections();
            //debug("getParentSections("+el.id+") = " + parents);
            for (var i = this.visible.length - 1; i >= 0; i--) {
                if (parents.contains(this.visible[i])) {
                    break;
                } else {
                    this.hideSection(this.visible[i]);
                }
            }
        }
        var el = new Element(id);
        var parent = document.getElementById(el.getParent().id);
        if (!/item\d-active/.test(parent.className)) {
            parent.className = parent.className.replace(/(item\d)/, "$1-active");
        }
        if (document.all) { 
        	document.getElementById(id).style.display = "block"; 
        	document.getElementById(id).style.display = "none";
        	
        	//oezduman20070731
        	//workaround für IE7 Rendering-Bug
        	//s. Bug#59416 
        	setTimeout(
        		function(a) { 
        			return function() { 
        				document.getElementById(a).style.display = "block"; 
        				} }(id),100);

        }
        document.getElementById(id).style.visibility = "visible";
        
        document.getElementById(id).style.zIndex = this.zIndex.visible + el.level;
        
        if (this.fixIeSelectBoxBug && this.browser.ie556) {
            var div = document.getElementById(id);
            var iframe = document.getElementById(id+"-iframe");
            if (div != null && iframe != null) {
            	if (iframe.style != null && div.currentStyle != null) {
		            iframe.style.width = div.offsetWidth + parseInt(div.currentStyle.borderLeftWidth) + parseInt(div.currentStyle.borderRightWidth);
		            iframe.style.height = div.offsetHeight + parseInt(div.currentStyle.borderTopWidth) + parseInt(div.currentStyle.borderBottomWidth);
		            iframe.style.top = -parseInt(div.currentStyle.borderTopWidth);
		            iframe.style.left = -parseInt(div.currentStyle.borderLeftWidth);
		            iframe.style.zIndex = 1;//div.style.zIndex - 1;
		            iframe.style.display = "block";
            	}
            }
        } else if (this.browser.ie5) {
        	var selectBox = document.getElementById("select_to_hide");
        	if (selectBox != null) {
        		selectBox.style.visibility = "hidden";
        	}
        }
        this.visible.push(id);
    }

    /* Emulating an empty non-existent section, we have to hide elements, works like showSection() */
    this.showItem = function(id, cnt) {
        if (typeof cnt != "undefined") {
            if (cnt != this.itemShowCnt) { return; }
        }
        
        this.itemShowCnt++;
        
        var el = new Element(id);
        document.getElementById(id).style.zIndex = this.zIndex.visible + el.level;
        
        if (this.visible.length) {            
        	var el = new Element(id + "-section");
            var parents = el.getParentSections();
            //debug("showItem() getParentSections("+el.id+") = " + parents);
            for (var i = this.visible.length - 1; i >= 0; i--) {
                if (parents.contains(this.visible[i])) {
                    break;
                } else {
                    this.hideSection(this.visible[i]);
                }
            }
        }
    }

    /* Hide section (1 argument passed)
     * Try to hide section (2 arguments passed) - check cnt with sectionHideCnt */
    this.hideSection = function(id, cnt) {
        if (typeof cnt != "undefined") {
            if (cnt != this.sectionsHideCnt[this.sections.indexOf(id)]) { return; }
            if (id == this.visible.getLast()) {
                //debug("hideSectionAll("+id+", "+cnt+") , visible = " + this.visible);
                for (var i = this.visible.length - 1; i >= 0; i--) {
                    this.hideSection(this.visible[i]);
                }
                return;
            }
        }
        //debug("hideSection("+id+", "+cnt+") , visible = " + this.visible);
        var el = new Element(id);
        var parent = document.getElementById(el.getParent().id);
        if (/item\d-active/.test(parent.className)) {
            parent.className = parent.className.replace(/(item\d)-active/, "$1");
        }
        document.getElementById(id).style.zIndex = this.zIndex.hidden;
        document.getElementById(id).style.visibility = "hidden";
        if (document.all) { document.getElementById(id).style.display = "none"; }
        if (this.fixIeSelectBoxBug && this.browser.ie556) {
            var iframe = document.getElementById(id+"-iframe");
            iframe.style.display = "none";
        } else if (this.browser.ie5) {
        	var selectBox = document.getElementById("select_to_hide");
        	if (selectBox != null) {
        		selectBox.style.visibility = "visible";
        	}
        }
        if (this.visible.contains(id)) {
            if (id == this.visible.getLast()) {
                this.visible.pop();
            } else {
                //throw "DropDownMenuX.hideSection('"+id+"', "+cnt+") failed, trying to hide a section that is not the deepest visible section";
                return;
            }
        } else {
            //throw "DropDownMenuX.hideSection('"+id+"', "+cnt+") failed, cannot hide element that is not visible";
            return;
        }
        this.sectionsHideCnt[this.sections.indexOf(id)]++;
    }

    /* Element (.section, .item2 etc) */
    function Element(id) {
        
        this.menu = self;
        this.id = id;

        /* Get Level of given id
         * Examples: menu-1 (1 level), menu-1-4 (2 level) */
        this.getLevel = function() {
            var s = this.id.substr(this.menu.id.length);
            return s.substrCount("-");
        }

        /* Get parent Element */
        this.getParent = function() {
            var s = this.id.substr(this.menu.id.length);
            var a = s.split("-");
            a.pop();
            return new Element(this.menu.id + a.join("-"));
        }

        /* Check whether an element has a parent element */
        this.hasParent = function() {
            var s = this.id.substr(this.menu.id.length);
            var a = s.split("-");
            return a.length > 2;
        }

        /* Check whether an element has a sub-section */
        this.hasChilds = function() {
            return Boolean(document.getElementById(this.id + "-section"));
        }

        /* Get parent section elements for current section */
        this.getParentSections = function() {
            var s = this.id.substr(this.menu.id.length);
            s = s.substr(0, s.length - "-section".length);
            var a = s.split("-");
            a.shift();
            a.pop();
            var s = this.menu.id;
            var parents = [];
            for (var i = 0; i < a.length; i++) {
                s += ("-" + a[i]);
                parents.push(s + "-section");
            }
            return parents;
        }
        
        this.level = this.getLevel();
    }

    /* Clear all timers set with setTimeout() */
    function clearTimers() {
        for (var i = self.timers.length - 1; i >= 0; i--) {
            clearTimeout(self.timers[i]);
            self.timers.pop();
        }
    }

    var self = this;
    this.id = id; /* menu id */
    this.tree = []; /* tree structure of menu */
    this.sections = []; /* all sections, required for timeout */
    this.sectionsShowCnt = [];
    this.sectionsHideCnt = [];
    this.itemShowCnt = 0;
    this.timers = []; // timeout ids
    this.visible = []; /* visible section, ex. Array("menu-0-section", ..) , succession is important: top to bottom */
}

/* Finds the index of the first occurence of item in the array, or -1 if not found */
if (typeof Array.prototype.indexOf == "undefined") {
    Array.prototype.indexOf = function(item) {
        for (var i = 0; i < this.length; i++) {
            if (this[i] === item) {
                return i;
            }
        }
        return -1;
    }
}

/* Check whether array contains given string */
if (typeof Array.prototype.contains == "undefined") {
    Array.prototype.contains = function(s) {
        for (var i = 0; i < this.length; i++) {
            if (this[i] === s) {
                return true;
            }
        }
        return false;
    }
}

/* Counts the number of substring occurrences */
if (typeof String.prototype.substrCount == "undefined") {
    String.prototype.substrCount = function(s) {
        return this.split(s).length - 1;
    }
}

/* Get the last element from the array */
if (typeof Array.prototype.getLast == "undefined") {
    Array.prototype.getLast = function() {
        return this[this.length-1];
    }
}

// launch a normal TeachWeb popup. They all have the same width but different heights.
function launchPopup(popupUrl, title, height) {
	aWindow = open(popupUrl,title,'width=446,height=' + height + ',left=100,top=100,resizable=0,scrollbars=yes');
    // Clemens (05.04.2004): check if popup is blocked; popupblocker logging
    if (aWindow == null || aWindow == 'undefined' || aWindow == '') {
		// make a hhtp request to store settings in stat
		imageRequest = new Image();
		imageRequest.src = "http://www07.cornelsen.de/dcs.gif?popupsenabled=false";
		// setCookie( 'cookie_popups_enabled', 'NEIN', null, '/teachweb', 'www.cornelsen.de');
		alert('Sehr geehrter Nutzer,\n um fortzufahren, müssen Sie ein Popupfenster in ihrem Browser zulassen.');
		// window.location.reload();
		
    } else { // make a hhtp request to store settings in stat
		imageRequest = new Image();
		imageRequest.src = "http://www07.cornelsen.de/dcs.gif?popupsenabled=true";
		// setCookie( 'cookie_popups_enabled', 'JA', null, '/teachweb', 'www.cornelsen.de');
		
    }
    //aWindow.focus();
}