sfHover = function() {
	if (!document.getElementsByTagName) return false;
	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 for making rollovers in per_nav
		function nav_overs(elem)
		{
			var pnav = document.getElementById(elem);
			
			var nav_items = pnav.getElementsByTagName('li');
			for(i=0;i<nav_items.length;i++){
				//dont try to make rollovers for images with no_rollover class
				if(nav_items[i].className != 'act'){
					nav_items[i].onmouseover=function(){this.className = 'act';}
					nav_items[i].onmouseout=function(){this.className = '';}
				}				
				
			}
			
			
			
		}
		
window.onload=function(){
			//initLightbox();
			nav_overs('nav');
		}