//////////////////////////////////////////////
// Handle hover on nav to do pulldown menus //
//////////////////////////////////////////////
sfHover = function() {
	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);

//////////////////////////////////
// Do pop up windows for photos //
//////////////////////////////////
var popup_window = ''

function popitup(url) {
	if (popup_window.location && !popup_window.closed) {
		popup_window.location.href = url; 
		popup_window.focus(); } 
	else { 
		popup_window=window.open(url,'htmlname','width=500,height=800,resizable=1');} 
}

function popitup_tidy() {
	if (popup_window.location && !popup_window.closed) { 
   		popup_window.close(); } 
}