window.onload = add;
function add(){
	if(!document.getElementById("pc_lists")){return false}
var lists_li = document.getElementById("pc_lists").getElementsByTagName("li");
for(var i=0;i<lists_li.length;i++){
	lists_li[i].onmousemove=function(){
		this.className="hover"
	}
	lists_li[i].onmouseout=function(){
		this.className=""
	}
}
	}