function menu_item(parent, id, title, imageNormal, imageOver, url, level, expanded, height)
{
	this.parent = parent;
	this.id = id;
	this.title = title;
	this.imageNormal = imageNormal;
	this.imageOver = imageOver;
	this.url = (url && url != '') ? url : '#' + title;
	this.level = level ? level : 0;
	this.expanded = expanded;
	var cookieExpanded = getCookie(id);
	if(cookieExpanded){
		this.expanded = cookieExpanded == "true";
	}
	this.height = height;
	this.hasImage = this.imageOver != '';
	if(this.hasImage){
		this.imageOverPreloader = new Image();
		this.imageOverPreloader.src = imageOver;
	}
	this.getFullId = function()
	{
		return (this.parent ? this.parent.getFullId() + '_' : '') + this.id;
	}
	this.items = new Array();
	this.getMenu = function()
	{
		var result = this;
		while(result.parent)
			result = result.parent;
		return result;
	}
	this.menu = this.getMenu();
	this.addItem = function(id, title, imageNormal, imageOver, url, expanded, height)
	{
		var item = new menu_item(this, id, title, imageNormal, imageOver, url, this.level + 1, expanded, height);
		this[id] = item;
		this.items.push(item);
	}
	this.collapse = function(){
		this.expanded = false;
		this.updateExpanded();
	}
	this.expand = function(){
		this.expanded = true;
		this.updateExpanded();
	}
	this.toggleExpanded = function(){
		this.expanded = !this.expanded;
		this.updateExpanded();
	}
	this.onClick = function()
	{
		if(this.items.length > 0)
		{
			this.toggleExpanded();
			if(this.menu.expandMode == 'single')
			{
				var p = this.parent;
				var lp = this;
				while(p)
				{
					for(var i = 0; i<p.items.length; i++){
						if(p.items[i] != lp) p.items[i].collapse();
					}
					lp = p;
					p = p.parent;
				}
			}
			document.body.focus();
			return false;
		}
		else
			return true;
	}
	this.onMouseOver = function()
	{
		if(this.hasImage){
			this.linkElement.style.background = 'url(' + this.imageOver + ')';
		}
	}
	this.onMouseOut = function()
	{
		if(this.hasImage){
			this.linkElement.style.background = 'url(' + this.imageNormal + ')';
		}
	}
	this.updateExpanded = function()
	{
		if(this.childrenElement){
			this.childrenElement.style.display = this.expanded ? '' : 'none';
			setCookie(this.id, this.expanded ? "true" : "false", undefined, "/");
		}
	}
	this.writeHTML = function(skipLevels)
	{
		if(skipLevels <= 0)
		{
			var linkContent = this.hasImage ? '' : this.title;
			document.write('<li id="' + this.getFullId() + '"><a href="' + this.url + '">' + linkContent + '</a></li>');
			this.liElement = document.getElementById(this.getFullId());
			this.linkElement = this.liElement.childNodes[0];
			this.linkElement.menu_item = this;
			this.linkElement.onclick = function(){return this.menu_item.onClick();};
			this.linkElement.onmouseover = function(){this.menu_item.onMouseOver();};
			this.linkElement.onmouseout = function(){this.menu_item.onMouseOut();};
			if(this.hasImage)
				this.linkElement.style.background = 'url(' + this.imageNormal + ')';
			if(this.height)
				this.linkElement.style.height = this.height;
		}
		if(this.items.length > 0)
		{
			document.write('<ul id="' + this.getFullId() + '_items">');
			for(var i=0; i < this.items.length; i++)
			{
				this.items[i].writeHTML(skipLevels > 0 ? skipLevels - 1 : 0);
			}
			document.write('</ul>');
			this.childrenElement = document.getElementById(this.getFullId() + '_items');
			this.updateExpanded();
		}
	}
	this.getHTML = function(skipLevels)
	{
		var result = '';
		if(skipLevels <= 0)
		{
			var linkContent = this.hasImage ? '' : this.title;
			result += '<li id="' + this.getFullId() + '"><a href="' + this.url + '">' + linkContent + '</a></li>';
		}
		if(this.items.length > 0)
		{
			result += '<ul id="' + this.getFullId() + '_items">';
			for(var i=0; i < this.items.length; i++)
			{
				result += this.items[i].getHTML(skipLevels > 0 ? skipLevels - 1 : 0);
			}
			result += '</ul>';
		}
		return result;
	}
	this.mapToHTML = function(skipLevels)
	{
		if(skipLevels <= 0)
		{
			this.liElement = document.getElementById(this.getFullId());
			this.linkElement = this.liElement.childNodes[0];
			this.linkElement.href = this.url;
			this.linkElement.innerHTML = this.hasImage ? '' : this.title;
			this.linkElement.menu_item = this;
			this.linkElement.onclick = function(){return this.menu_item.onClick();};
			this.linkElement.onmouseover = function(){this.menu_item.onMouseOver();};
			this.linkElement.onmouseout = function(){this.menu_item.onMouseOut();};
			if(this.hasImage)
				this.linkElement.style.background = 'url(' + this.imageNormal + ')';
			if(this.height)
				this.linkElement.style.height = this.height;
		}
		if(this.items.length > 0)
		{
			for(var i=0; i < this.items.length; i++)
			{
				this.items[i].mapToHTML(skipLevels > 0 ? skipLevels - 1 : 0);
			}
			this.childrenElement = document.getElementById(this.getFullId() + '_items');
			this.updateExpanded();
		}
	}
}