function SymError()
	{
 	 return true;
	}
window.onerror = SymError;
var SymRealWinOpen = window.open;

function SymWinOpen(url, name, attributes)
	{
 	 return (new Object());
	}
window.open = SymWinOpen;

  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);