// JavaScript Document

// Nav hack for IE

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);

function switchHeader() {
	var theImage = new Array("header1.gif", "header2.gif", "header3.gif")
	var ran_unrounded=Math.random()*3;
	var randomNum=Math.floor(ran_unrounded);
		
	document.getElementById("header").style.backgroundImage = "url(img/header/"+theImage[randomNum]+")";
	}