function openWindow( fullurl, height, width, x, y)
{

   var features = "scrollbars=no,toolbar=no,menubar=no,location=no,directories=no,status=no,resizable=yes,"
   if ((typeof(wininstance) != "object") || (wininstance.closed) ) {
      wininstance = window.open(fullurl,'popup',features+"width="+width +",height="+ height)
      wininstance.moveTo(x,y)
      wininstance.focus()
   }
   else
   {
      wininstance.close()
      wininstance = window.open(fullurl,'popup',features+"width="+width +",height="+ height)
      for (i=1;i<10000;i++){}
      if ((typeof(wininstance) == "object") && (!wininstance.closed) ) {
         wininstance.moveTo(x,y)
         wininstance.focus()
      }
   }
}