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);


/*
  JS FOR CHANGING ON MOUSE OVER
*/
var last_image;
var last_target = null;
function switch_image(url,target){
  //var basedir = '\\images\\';
  var basedir = '../images/';
  var target = document.getElementById(target);
  if(target != null){
    if(last_target == null){
      last_target = target;
      last_image = target.src;  
    }
    target.src = basedir+url;
  }
}
function switch_back(){
  if(last_image != ""){
    last_target.src = last_image;
  }  
}