function replaceEle(){
	if(document.getElementById){
		var obj = document.getElementById("menu");
		obj.innerHTML = obj.innerHTML.replace(/<dt>/gi, '<dt onmouseover="popupMenu(this);" onmouseout="hiddenMenu(this);">');
		obj.innerHTML = obj.innerHTML.replace(/<li>/gi, '<li onmouseover="popupMenu(this);" onmouseout="hiddenMenu(this);">');
	}
}
	
function popupMenu( obj ){
	var menu = obj.getElementsByTagName("ul").item(0);
	if(menu){
		menu.style.display = "block";
	}
	
	if(obj.tagName.match(/li/i)){
		obj.style.backgroundColor = "#fff";
	}
}
	
function hiddenMenu( obj ){
	var menu = obj.getElementsByTagName("ul").item(0);
	if(menu){
		menu.style.display = "none";
	}
	
	if(obj.tagName.match(/li/i)){
		obj.style.backgroundColor = "#fff";
	}
}