function unload_handler() 
{
  LeftPosition = (screen.width) ? (screen.width)/4 : 0;
  TopPosition = (screen.height) ? (screen.height)/4 : 0;
  
  if(top.location.host=='apache2')
  {
	  var url="http://apache2/root/bm/popup-display.php";	
  }
  else
  {
	  var url="http://www.brandmantra.net/popup-display.php";
  }
 
  //window.open(url,'subwindow','scrollbars=1,resizable=1,top='+TopPosition+',left='+LeftPosition+',width=400,height=271');
}

function load() 
{

	if (navigator.userAgent.toLowerCase().indexOf('safari')!=-1) {
		var bodyElt; 
		bodyElt = document.getElementById("idopenpopup");
		
		if (!bodyElt) {
			bodyElt = document.getElementsByTagName("body")[0];
		}
	
		if (bodyElt) {
			bodyElt.addEventListener("unload", unload_handler, false);
		}
	} else {
		window.onunload=unload_handler;
	}
}
window.onload=load;