// JavaScript Document
function showhidePopUpLayer(layerName,show) {
  if (document.getElementById) {
    obj = document.getElementById(layerName);
  } else if (document.all) {
    obj = document.all.item(layerName);
  } else {
    obj = null;
  }
  if (obj==null) return;
  obj.style.visibility = show ? 'visible' : 'hidden';
  obj.style.display = show ? 'block' : 'none';
}


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);