function OpenWindow (HelpFile) {
 var newWind=window.open(HelpFile,'remote',"toolbar=no,location=no,directories=no,status=yes,menubar=no,scrollbars=yes,resizable=yes,width=640,height=400,left=0,top=0");
 if (newWind.opener == null) {
 		newWind.opener = window;
 } else {
 	  newWind.focus();
 }
  	return false;
 }