function op(file,width,height)
//       ~~
 {
  def = open(file, "noname",  "scrollbars=1,width=" + width + ",height=" + height + ",status=0");
 }
 
//-----------------------------------------------------------------------------------------------
function pop(file,width,height)
//       ~~~
{
  open(file, "noname",  "scrollbars=1,width=" + width + ",height=" + height + ",status=0")
}