function Popup(pop_file,pop_height,pop_width)
{
   pop_config=""
   pop_config+="toolbar=no,";
   pop_config+="location=no,"
   pop_config+="directories=no,";
   pop_config+="status=no,"
   pop_config+="menubar=no," //Not on Apple Mac for obvious reasons
   pop_config+="scrollbars=yes,"
   pop_config+="resizable=yes," //Mac windows are always resizable
   pop_config+="copyhistory=no,"
   pop_config+="width="+pop_width+","
   pop_config+="height="+pop_height
   var pop_win=open(pop_file,"",pop_config);
   pop_win.focus();
}