var image1 = new Image();
image1.src = "images/menu/aboutusr.gif";
var image2 = new Image();
image2.src = "images/menu/filmsr.gif";
var image3 = new Image();
image3.src = "images/menu/libraryr.gif";
var image4 = new Image();
image4.src = "images/menu/newsr.gif";
var image5 = new Image();
image5.src = "images/menu/contactr.gif";

function roll(img_name, img_src)
   {
   document[img_name].src = img_src;
   }


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);