function linkClass(){
	var linkmenu=document.getElementById("menu");
	var linkdiv=linkmenu.getElementsByTagName("div");
	for(var i=0;i<linkdiv.length;i++){
		linkdiv[i].onmouseover=function(){
			this.className="menudivon";
			var diva=this.getElementsByTagName("a");
			for(var j=0;j<diva.length;j=j+2){
			diva[j].className="onebg";
			if(j+1<diva.length){
			diva[j+1].className="twobg";}}
			var divul=this.getElementsByTagName("ul");
			divul[0].className="menudivulon";}
		linkdiv[i].onmouseout=function(){
			this.className="menudivout";
			var divul=this.getElementsByTagName("ul");
			divul[0].className="menudivulout";}
	}
}
addLoadEvent(linkClass);