/*
 * DO NOT REMOVE THIS NOTICE
 *
 * PROJECT:   mygosuMenu
 * VERSION:   1.1.6
 * COPYRIGHT: (c) 2003,2004 Cezary Tomczak
 * LINK:      http://gosu.pl/dhtml/mygosumenu.html
 * LICENSE:   BSD (revised)
 */

/*

   Modified by Tomek Furtak
  

*/

   var menu_act = Array();
   var menu_noact = Array();
   
   var sBox1 = Array();
   var sBox2 = Array();
   var mBox1 = Array();
   var mBox2 = Array();
   


function prepare_menu()
{
   var out = '';
   var x = 0;
   
   // zaczynamy od wyrysowania początku tabeli
   out = '<table cellspacing="0" cellpadding="0" id="menu1" class="ddmx"><tr>';

   for ( x = 0; MENU[x]; x++ )
   {
      out += '<td>';

      if ( MENU[x][0] )
         link = MENU[x][0];
      else
         link = 'javascript:void(0)';

      if ( MENU[x][1] )
      {
         img1 = MENU[x][1]; _width = MENU[x][3]; _height = MENU[x][4]
         mouse_out = ' onmouseout="this.src = \''+ img1 +'\'" ';
		
		 menu_noact[x] = new Image();
		 menu_noact[x].src = img1;
         
      }
      else { img1 = ''; mouse_out = ''; width = ''; height = ''; }

      if ( MENU[x][2] )
      {
         img2 = MENU[x][2];
         mouse_ovr = ' onmouseover="this.src = \''+ img2 +'\'" ';
		 menu_act[x] = new Image();
		 menu_act[x].src = img2;
      }
      else { img2 = ''; mouse_ovr = ''; }

      // jesli nie ma podmenu, to  javascript dba eventami o wyswietlenie badz nie
      if (  MENU[x][5] )
      {
      	mouse_ovr = '';
      	mouse_out = '';
      }
      

      out += '<a class="item1" href="' + link +'"><img src="'+ img1 +'" id="menu_img_' + x + '" alt="" width="' + _width + '" height="' + _height + '" border="0"';
      out += mouse_ovr + mouse_out + "></a>";
      // check if submenu exist
      if ( MENU[x][5] )
         out += prepare_submenu( MENU[x][5] );

      out += '</td>';
   }



   // kończymy rysując zamknięcie tabeli
   out += '</tr></table>';
   document.write( out );
}

function prepare_submenu( MENU )
{
   var x = 0;
   var tmp_out = '';

   // wypisujemy początek podmenu
   tmp_out += '<div class="section">';

   for ( x = 0; MENU[ x ]; x++ )
   {
      // jesli mamy podmenu, to będziemy musieli to uwzględnić w klasie, rysunku
      // i wywołaniu
      if ( MENU[ x ][2] )
      {
         klasa = 'item2 arrow';
         znacznik = '<img src="images/bullet_menu.gif" width="8" height="9" alt="" />';
      } else
      {
         klasa = 'item2';
         znacznik = '';
      }

      if ( MENU[x][0] )
         link = MENU[x][0];
      else
         link = 'javascript:void(0)';

 
      tmp_out += '<a class="' + klasa + '" href="' + link + '">' + MENU[x][1] + znacznik + '</a>';
      if ( MENU[x][2] )
         tmp_out += prepare_submenu( MENU[x][2] );
      
      
   }

   // wypisujemy koniec podmenu
   tmp_out += '</div>';
   return tmp_out;
}

function getWindowWidth()
{
   var szer_okna;
   if ( self.innerWidth )
      szer_okna = self.innerWidth;
   else if (document.documentElement && document.documentElement.clientWidth)
   {
      szer_okna = document.documentElement.clientWidth;
   }
   else if (document.body)
   {
      szer_okna = document.body.clientWidth;
   }  
   return szer_okna;
}

function DropDownMenuX(id) {

    /* Type of the menu: "horizontal" or "vertical" */
    this.type = "horizontal";

    /* Delay (in miliseconds >= 0): show-hide menu
     * Hide must be > 0 */
    this.delay = {
        "show": 0,
        "hide": 400
    }
    /* Change the default position of sub-menu by Y pixels from top and X pixels from left
     * Negative values are allowed */
    this.position = {
        "level1": { "top": 0, "left": 0},
        "levelX": { "top": 0, "left": 0}
    }

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

   this.windowWidth = getWindowWidth();

    /* Z-index property for .section */
    this.zIndex = {
        "visible": 500,
        "iframe" : 499,
        "hidden": -1
    };

    // Browser detection
    this.browser = {
        "ie": Boolean(document.body.currentStyle),
        "ie5": (navigator.appVersion.indexOf("MSIE 5.5") != -1 || navigator.appVersion.indexOf("MSIE 5.0") != -1),
        "ie6": (navigator.appVersion.indexOf("MSIE 6.0") != -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 ( (document.compatMode) &&  (document.compatMode == 'CSS1Compat')) {
                    nodes[i].style.width = (maxWidth - parseInt(nodes[i].currentStyle.paddingLeft) - parseInt(nodes[i].currentStyle.paddingRight)) + "px";
                } else {
                    nodes[i].style.width = (maxWidth) + "px";
                }
            }
        }
    }

function set_position()
{
// obliczamy szerokosc okna

	var szer_okna;
	if ( self.innerWidth )
		szer_okna = self.innerWidth;
	else if (document.documentElement && document.documentElement.clientWidth)
	{
		szer_okna = document.documentElement.clientWidth;
	}
	else if (document.body)
	{
		szer_okna = document.body.clientWidth;
	}


 
// ustalamy rozmiary okien glownych
for ( var i = 0; i < mBox1.length; i++ )
{
	box1 = mBox1[i];
	box2 = mBox2[i];
	
	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 {

		var obj = box1.offsetParent;
		var par_szer = 0;
		while ( obj.offsetParent )
		{
			par_szer  = par_szer + obj.offsetLeft;
			obj = obj.offsetParent;
		}
		var tab = document.getElementById('menu1');
		var szer_tab = tab.offsetWidth;
		var obj = tab.offsetParent;
		var tab_szer = tab.offsetLeft;
		while ( obj.offsetParent )
		{
			tab_szer  = tab_szer + obj.offsetLeft;
			obj = obj.offsetParent;
		}
                              	
		var poz_tab =   tab_szer + szer_tab ;
  var ograniczenie = poz_tab;                            	
//		var ograniczenie = Math.min(poz_tab, szer_okna);
					
		var nadmiar = ograniczenie -( box1.offsetLeft +  self.position.level1.left + box2.offsetWidth + par_szer);
		if ( nadmiar > 0 ) 
			nadmiar = 0;


		if ( box1.offsetLeft + self.position.level1.left + par_szer  > ograniczenie)
		{
			nadmiar = 0;
		}
		box2.style.left = box1.offsetLeft + nadmiar + self.position.level1.left + "px";
		
	}

}

// ustalamy rozmiary okien pobocznych
for ( var i = 0; i < sBox1.length; i++ )
{
	box1 = sBox1[i];
	box2 = sBox2[i];
	
	box2.style.top = box1.offsetTop + self.position.levelX.top + "px";
	box2.style.left = box1.offsetLeft + box1.offsetWidth + self.position.levelX.left + "px";


	var obj = box1.offsetParent;
	var par_szer = 0;
	while ( obj.offsetParent )
	{
		par_szer  = par_szer + obj.offsetLeft;
		obj = obj.offsetParent;
	}

	var cala_szer = par_szer + box1.offsetLeft + box1.offsetWidth+ self.position.levelX.left;
	var suma_ogolna = cala_szer + Number(box2.style.width.replace('px',''));

	var tab = document.getElementById('menu1');
	var szer_tab = tab.offsetWidth;
    var obj = tab.offsetParent;
    var tab_szer = 0;
    while ( obj.offsetParent )
	{
		tab_szer  = tab_szer + obj.offsetLeft;
		obj = obj.offsetParent;
	}
                              	
	var poz_tab =   tab_szer + szer_tab ;
  var ograniczenie = poz_tab;                            	
//	var ograniczenie = Math.min(poz_tab, szer_okna)	
                        
	var nadmiar = ograniczenie - suma_ogolna;
                         
	if ( nadmiar < 0 )
	{
		var nowa_szer = Number(box2.style.left.replace('px', '')) + nadmiar;
		box2.style.left = "-" + box2.style.width;
	}
		
}



// ustalamy rozmiary okien pobocznych

}

    /* Parse nodes, create events, position elements */
    function parse(nodes, tree, id) {
        for (var i = 0; i < nodes.length; i++) {
            if (1 != nodes[i].nodeType) {
                continue;
            }
            switch (true) {
                // .item1
                case /\bitem1\b/.test(nodes[i].className):
                    nodes[i].id = id + "-" + tree.length;
                    tree.push(new Array());
                    nodes[i].onmouseover = itemOver;
                    nodes[i].onmouseout = itemOut;
                    break;
                // .item2
                case /\bitem2\b/.test(nodes[i].className):
                    nodes[i].id = id + "-" + tree.length;
                    tree.push(new Array());
                    nodes[i].onmouseover = itemOver;
                    nodes[i].onmouseout = itemOut;
                    break;
                // .section
                case /\bsection\b/.test(nodes[i].className):
                    // id, events
                    nodes[i].id = id + "-" + (tree.length - 1) + "-section";
                    nodes[i].onmouseover = sectionOver;
                    nodes[i].onmouseout = sectionOut;
                    // position
                    var box1 = document.getElementById(id + "-" + (tree.length - 1));
                    var box2 = document.getElementById(nodes[i].id);
                    var el = new Element(box1.id);
                    var szer_okna;
                     if ( self.innerWidth )
                        szer_okna = self.innerWidth;
                     else if (document.documentElement && document.documentElement.clientWidth)
                     {
	                szer_okna = document.documentElement.clientWidth;
                     }
                     else if (document.body)
                     {
                        szer_okna = document.body.clientWidth;
                     }                  

                     // sprawdzam czy nie trzeba przesunąć całości z lewa



                    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 {

                              var obj = box1.offsetParent;
                              var par_szer = 0;
                              while ( obj.offsetParent )
                              {
                                 par_szer  = par_szer + obj.offsetLeft;
                                 obj = obj.offsetParent;
                              }
                              	var tab = document.getElementById('menu1');
                            	var obj = tab.offsetParent;
                              	var tab_szer = tab.offsetWidth + tab.offsetLeft;
                              	while ( obj.offsetParent )
	                            {
                                	tab_szer  = tab_szer + obj.offsetLeft;
                                 	obj = obj.offsetParent;
                              	}
                              	
                              	var poz_tab =   tab_szer;
                              	var ograniczenie = poz_tab;
//                              var ograniczenie = Math.min(poz_tab, szer_okna)
                              var nadmiar = ograniczenie -( box1.offsetLeft +  self.position.level1.left + box2.offsetWidth + par_szer);
                              if ( nadmiar > 0 ) nadmiar = 0;

                              if ( box1.offsetLeft + self.position.level1.left + par_szer  > ograniczenie)
                              {
                                 nadmiar = 0;
                              }

                                box2.style.left = box1.offsetLeft + nadmiar + self.position.level1.left + "px";
                                mBox1[mBox1.length] = box1;
                                mBox2[mBox2.length] = box2;
                                

                                
                            }
                        } 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";
                        box2.style.left = box1.offsetLeft + box1.offsetWidth + self.position.levelX.left + "px";


                        var obj = box1.offsetParent;
                        var par_szer = 0;
                        while ( obj.offsetParent )
                        {
                           par_szer  = par_szer + obj.offsetLeft;
                           obj = obj.offsetParent;
                        }

                        var cala_szer = par_szer + box1.offsetLeft + box1.offsetWidth+ self.position.levelX.left;
                        var suma_ogolna = cala_szer + Number(box2.style.width.replace('px',''));

                        var tab = document.getElementById('menu1');
                        var szer_tab = tab.offsetWidth;
                        var obj = tab.offsetParent;
                        var tab_szer = 0;
                        while ( obj.offsetParent )
	                    {
                        	tab_szer  = tab_szer + obj.offsetLeft;
                            obj = obj.offsetParent;
                        }
                              	
                        var poz_tab =   tab_szer + szer_tab ;
var ograniczenie = poz_tab;                              	
//                        var ograniczenie = Math.min(poz_tab, szer_okna)	
                        
                        var nadmiar = ograniczenie - suma_ogolna;
                         
                        if ( nadmiar < 0 )
                        {
                           var nowa_szer = Number(box2.style.left.replace('px', '')) + nadmiar;
                           box2.style.left = "-" + box2.style.width;
                                                           
                           sBox1[sBox1.length] = box1;
                           sBox2[sBox2.length] = box2;

                        }
                        
                    }
                    // sections, sectionsShowCnt, sectionsHideCnt
                    self.sections.push(nodes[i].id);
                    self.sectionsShowCnt.push(0);
                    self.sectionsHideCnt.push(0);
                    if (self.fixIeSelectBoxBug && self.browser.ie6) {
                        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: 0px; display: none; filter:alpha(opacity=0);"></iframe>';
                    }
                    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);
                }
            }
        }
    }

    /* event, item:onmouseover */
    function itemOver() {
        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() {
        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, section:onmouseover */
    function sectionOver() {
        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() {
        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 (!this.browser.ie)
			set_position();
    
        if (typeof cnt != "undefined") {
            if (cnt != this.sectionsShowCnt[this.sections.indexOf(id)]) { return; }
        }
        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();
            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");
            
            // ustawiamy odpowiedni obrazek
            var numer;
            numer = id;
  			numer = numer.split('-')          
            var obrazek;
            obrazek  = document.getElementById('menu_img_' + numer[1]);
            obrazek.src = menu_act[numer[1]].src;
	
        }
        if (document.all) { document.getElementById(id).style.display = "block"; }
        document.getElementById(id).style.visibility = "visible";
        

        
        document.getElementById(id).style.zIndex = this.zIndex.visible;
        this.zIndex.visible++;
        if (this.fixIeSelectBoxBug && this.browser.ie6) {
            var div = document.getElementById(id);
            var iframe = document.getElementById(id+"-iframe");
            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 = this.zIndex.iframe;
            iframe.style.display = "block";
        }
        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++;
        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) {


	            // ustawiamy odpowiedni obrazek	        
            var numer;
            numer = id;
  			numer = numer.split('-')
  			if (numer[2] == 'section')
  			{          
            	var obrazek;
            	obrazek  = document.getElementById('menu_img_' + numer[1]);
            	obrazek.src = menu_noact[numer[1]].src;
            }
	

        if (typeof cnt != "undefined") {
            if (cnt != this.sectionsHideCnt[this.sections.indexOf(id)]) { return; }
            if (id == this.visible.getLast()) {
                for (var i = this.visible.length - 1; i >= 0; i--) {
                    this.hideSection(this.visible[i]);
                }
                return;
            }
        }
        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.ie6) {
            var iframe = document.getElementById(id+"-iframe");
            iframe.style.display = "none";
        }
        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];
    }
}

// +----------------------------------------------------------------+
// | 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;
    };
}