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sfHover = function() {
	sfHover2("page_nav"); //replace nav with the id of dropdown, you can have as many as you want
	sfHover2("top_nav");
}
sfHover2 = function(menuName) {
	var sfEls = document.getElementById(menuName).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);

//--><!]]>