function sfHover() {
	var sfEls = document.getElementById("nav").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);

function addLoadEvent(func) {
	var oldonload = window.onload;
	if (typeof window.onload != 'function') { window.onload = func; } else {
		window.onload = function() {
			if (oldonload) { oldonload(); }
			func();
		}
	}
} 
/*
function displayGuestbookForm(){
	var guestbookform = document.getElementById('guestbookform')
	if (guestbookform.style.display == 'none') { guestbookform.style.display = 'block'; document.getElementById('guestbookform').focus(); }
	else { document.getElementById('guestbookform').focus(); }
}
*/