function Popup(opt,url)
{	
	window.open(url,'popup',opt);
}

hover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
	  sfEls[i].onmouseover=function() {
		this.className+=" hover";
	  }
	  sfEls[i].onmouseout=function() {
		this.className=this.className.replace(new RegExp(" hover\\b"), "");
	  }
	}
}
if (window.attachEvent) window.attachEvent("onload", hover);
function getScreenHeight()
{
   screenHeight = screen.height;
   if (screenHeight == 1200)   
      	screenHeight = 851;
   else{
       if (screenHeight == 1024)   
      	   screenHeight = 675;
       else{
          if (screenHeight == 864)   
      	      screenHeight = 515;
          else
		     screenHeight = 423;
       } 
   } 		
   return screenHeight;
}