function findOutDiv(thisEvent){ 
	while(thisEvent.className != "con"){ 
	if(thisEvent.tagName == "HTML"){ 
	thisEvent = false; 
	break; 
	}else{ 
	thisEvent = thisEvent.parentNode 
	} 
	} 
	return thisEvent; 
} 
document.onmouseover = function(e){ 
	if(!e)e = window.event; 
	var Event = e.target?e.target:e.srcElement;
	
	var thisEvent = findOutDiv(Event);
	if(thisEvent){ 
	var condivs=thisEvent.parentNode.childNodes;
	var lists=thisEvent.parentNode.parentNode.nextSibling.childNodes;
	for (var i=0; i<condivs.length; i++) {
		if(thisEvent==condivs[i]){
			condivs[i].className="con_on";
			lists[i].className="list_on";
		}else{
			condivs[i].className="con";
			lists[i].className="list_off";
		}
	}
	} 
}

function showMenu(o){
	o.getElementsByTagName('UL')[0].style.display='block';
}
function hideMenu(o){
	o.getElementsByTagName('UL')[0].style.display='none';
}