sfHover = function() {
	var sfEls = document.getElementById("menu").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}

if (window.attachEvent) window.attachEvent("onload", sfHover);

	
	ie = document.all;
	ns6 = document.getElementById && ! document.all;

function changeThis (id) {

	if (ie) {
	objlink = document.all[id];
	}
	else if (ns6) {
	objlink = document.getElementById(id);
	}

	if (!objlink) {
	alert("unrecognized link");
	return false;
	}

	objlink.style.backgroundImage = "url('http://i870.photobucket.com/albums/ab262/haocou/img/norm_left_on.gif')";
	objlink.style.backgroundPosition = "top left";
	objlink.style.color = "black";

	return true;
	}

function changeStyles(id) {
	
	if (ie) {
	obj = document.all[id];
	}

	else if (ns6) {
	obj = document.getElementById(id);
	}

	if (!obj) {
	alert("unrecognized id");
	return false;
	}

	obj.style.backgroundImage = "url('http://i870.photobucket.com/albums/ab262/haocou/img/norm_right_on.gif')";
	obj.style.backgroundPosition = "top right";
	
	return true;
	}