function newWindow(newURL,winname,width,height)
{
	var popup;
	var posleft = (window.screen.width - width) / 2;
    var postop = (window.screen.height - height) / 2;

  popup = //window.open(newURL,winname,'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbar=no,resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+posleft+', top='+postop+',screenX='+posleft+',screenY='+postop);
  window.open(newURL,winname,'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbar=no,resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+posleft+', top='+postop);
  popup.focus();
}