var curLi;

 function openLi(obj){
	 if(curLi)curLi.style.display = 'none';
	 var figli = obj.childNodes;
	 for(var i=0;i<figli.length;i++){
		if(figli[i].tagName=='UL'){
			figli[i].style.display = 'block';
			curLi = figli[i];
			figli[i].style.left = obj.offsetLeft;
			return true;
		}
	 }
 }
 
 function closeLi(){
	 if(curLi)curLi.style.display = 'none';
 }