sfHover = function() {
	if(document.getElementById("homeButtons")) {
	 var sfEls = document.getElementById("homeButtons").getElementsByTagName("span");
	 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);