function menu_onload(){
	if($("menu_vertical"))
		var verticals=new simpleMenu('menu_vertical','vertical');
	if($("menu_horizontal"))
		var horizontals=new simpleMenu('menu_horizontal','horizontal');
}

function simpleMenu(navid, orient){
	if(typeof document.getElementById=='undefined'||/opera[\/ ][56]/i.test(navigator.userAgent))
		return;	
	this.iskde=navigator.vendor=='KDE';
	this.isie=typeof document.all!='undefined'&&typeof window.opera=='undefined'&&!this.iskde;
	this.isoldsaf=navigator.vendor=='Apple Computer, Inc.'&&typeof XMLHttpRequest=='undefined';
	this.tree=function(){
	  return $(navid);
	}
	if(this.tree()!=null){
		this.items=this.tree().getElementsByTagName("li");
		this.itemsLen=this.items.length;
		for(c=0;c<this.itemsLen;c++){
			this.init(this.items[c],this.isie,this.isoldsaf,this.iskde,navid,orient);
		}
	}
}

simpleMenu.prototype.init=function(trigger,isie,isoldsaf,iskde,navid,ishoriz){
	trigger.menu=trigger.getElementsByTagName('ul').length?trigger.getElementsByTagName('ul')[0]:null;
	trigger.link=trigger.getElementsByTagName('a')[0];
	trigger.issub=trigger.parentNode.id==navid;
	trigger.ishoriz=ishoriz=='horizontal';
	
	this.openers={'m':'onmouseover','k':(isie?'onactivate':'onfocus')};
	
	var is_old_ie=(navigator.userAgent.toLowerCase().indexOf("msie 7")<0&&navigator.userAgent.toLowerCase().indexOf("msie 8")<0)?1:0;
	
	for(var i in this.openers){
		trigger[this.openers[i]]=function(e){
			if(!iskde)
				this.link.className+=(this.link.className==''?'':' ')+'rollover';
			if(this.menu!=null){
				if(this.ishoriz)
					this.menu.style.left=((isie||isoldsaf)&&(is_old_ie))?this.offsetLeft+'px':'auto';
				this.menu.style.top=(this.ishoriz&&this.issub)?
									((isie||(this.ishoriz&&isoldsaf))&&(is_old_ie))?
				    				this.link.offsetHeight+'px':'auto':
				 					((isie||(this.ishoriz&&isoldsaf))&&(is_old_ie))?
				   					this.offsetTop+'px':'0';
			}
		}
	}

	this.closers={'m':'onmouseout','k':(isie?'ondeactivate':'onblur')};
	
	for(i in this.closers){
		trigger[this.closers[i]]=function(e){
			this.related=(!e)?window.event.toElement:e.relatedTarget;
			if(!this.contains(this.related)){
				if(!iskde)
					this.link.className=this.link.className.replace(/[ ]?rollover/g, '');
				if(this.menu!=null)
					this.menu.style[(this.ishoriz?'left':'top')]=this.ishoriz?'-10000px':'-100em';
			}
		}
	}

	if(!isie){
		trigger.contains=function(node){
			if(node==null)
				return false;
			if(node==this)
				return true;
			else
				return this.contains(node.parentNode);
		}
	}
	trigger=null;
}