sfFocus = function() {
	var sfEls = document.getElementById("menu-princ").getElementsByTagName("A");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onfocus=function() {
			parentLI = this.parentNode.parentNode.parentNode;
			parentLI.className+=" pfocus";
		}
		sfEls[i].onblur=function() {
			parentLI = this.parentNode.parentNode.parentNode;
			parentLI.className=this.parentNode.parentNode.className.replace(new RegExp("pfocus\\b"), "");
		}
	}
}
if (window.attachEvent){
	window.attachEvent("onload", sfFocus);
} else {
	window.onload = sfFocus;
}