navHover = function() {
	var navEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<navEls.length; i++) {
		navEls[i].onmouseover=function() {
			this.className+=" navhover";
		}
		navEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" navhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", navHover);  //IE only

//facebook
(function(d, s, id) {
  var js, fjs = d.getElementsByTagName(s)[0];
  if (d.getElementById(id)) {return;}
  js = d.createElement(s); js.id = id;
  js.src = "//connect.facebook.net/en_US/all.js#xfbml=1";
  fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));