sfHover = function(idList, tagList) {
	var count;
	for (count=0; count<idList.length; count++) {
		var sfEls = document.getElementById(idList[count]).getElementsByTagName(tagList[count]);
		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'), '');
			}
		}
	}	
}