function SDMenu(id,cx) {
		var IE = document.all?true:false;
		if (!document.getElementById || !document.getElementsByTagName)
			return false;
		this.menu = document.getElementById(id); 
		allDiv = this.menu.getElementsByTagName("div");
		this.submenus = new Array;
		var j=0;
		for (var i=0; i<allDiv.length; i++)
		{
			
			if (allDiv[i].className == 'collapsed' || allDiv[i].className=='expanded')
			{
				this.submenus[j]=allDiv[i];
				if (IE)
				{
					this.submenus[j].style.width = (cx + (cx/20))+"px";
				}
				else
				{
					this.submenus[j].style.width = "100%";
				}
				j++;
			}
		}
		
		var minHeight = this.submenus[0].getElementsByTagName("span")[0].offsetHeight; 
		this.remember = true;
		this.speed = 5;
		this.markCurrent = true;
		this.oneSmOnly = true;
	}
	
	SDMenu.prototype.init = function() 
	{
		var mainInstance = this;
		for (var i = 0; i < this.submenus.length; i++)
		{
				this.submenus[i].getElementsByTagName("span")[0].onclick = function() {
				mainInstance.toggleMenu(this.parentNode);
			};
		}
		if (this.markCurrent) {
		
			var links = this.menu.getElementsByTagName("a");
			for (var i = 0; i < links.length; i++)
				if (links[i].href == document.location.href) {
					links[i].className = "current";
					break;
				}
		}
	
	};
	
	
	SDMenu.prototype.toggleMenu = function(submenu) 
	{
		if (submenu.className == "collapsed")
			this.expandMenu(submenu);
		else
			this.collapseMenu(submenu);
	};
	
	SDMenu.prototype.expandMenu = function(submenu) 
	{    	
    	str = submenu.id;
		var fullHeight = submenu.getElementsByTagName("span")[0].offsetHeight;
		var links = submenu.getElementsByTagName("a");
		for (var i = 0; i < links.length; i++)
		{
			fullHeight += links[i].offsetHeight;
		}
		var inputs = submenu.getElementsByTagName("br");
		
		for (var i = 0; i < inputs.length; i++)
		{
			fullHeight += 10;
		}
		//fullHeight +=10;
		var moveBy = Math.round(this.speed * (links.length + inputs.length));
		var mainInstance = this;
		var intId = setInterval(function() {
			var curHeight = submenu.offsetHeight;
			var newHeight = curHeight + moveBy;
			if (newHeight < fullHeight)
			{
				submenu.style.height = newHeight + "px";
				
				 
			}
			else {
				submenu.style.height = fullHeight + "px";
				clearInterval(intId);
				submenu.className = "";
			}
		}, 30);
		this.collapseOthers(submenu);
	};
	
	SDMenu.prototype.collapseMenu = function(submenu) 
	{
		var minHeight = submenu.getElementsByTagName("span")[0].offsetHeight;
		var moveBy = Math.round(this.speed * (submenu.getElementsByTagName("a").length + submenu.getElementsByTagName("INPUT").length));
		 
		var mainInstance = this;
		var pt = submenu.offsetHeight;
		
		var intId = setInterval(function() {
			var curHeight = submenu.offsetHeight;
			var newHeight = curHeight - moveBy;
			if (newHeight > minHeight)
				submenu.style.height = newHeight + "px";
			else {
				clearInterval(intId);
				submenu.style.height = "";
				submenu.className = "collapsed"; 
			}
		}, 30);
	};
	
	SDMenu.prototype.collapseOthers = function(submenu) 
	{
		if (this.oneSmOnly) {
			for (var i = 0; i < this.submenus.length; i++)
				if (this.submenus[i] != submenu && this.submenus[i].className != "collapsed")
					this.collapseMenu(this.submenus[i]);
		}
	};
	
	SDMenu.prototype.expandAll = function() 
	{
		var oldOneSmOnly = this.oneSmOnly;
		this.oneSmOnly = false;
		for (var i = 0; i < this.submenus.length; i++)
			if (this.submenus[i].className == "collapsed")
				this.expandMenu(this.submenus[i]);
		this.oneSmOnly = oldOneSmOnly;
	};
	
	SDMenu.prototype.collapseAll = function() 
	{
		for (var i = 0; i < this.submenus.length; i++)
			if (this.submenus[i].className != "collapsed")
				this.collapseMenu(this.submenus[i]);
	};
	
	SDMenu.prototype.memorize = function() 
	{
	};