function openWindow(theURL,width,height,scrollbar,windowname) {
  if (!scrollbar) scrollbar = 'no';
  if (!width) width = 400;
  if (!height) height = 600;
  if (!windowname) windowname = 'window'; 
  window.open(theURL,windowname,'status=0,toolbar=0,location=0,menubar=0,resizable=0,scrollbars='+scrollbar+',width='+width+',height='+height);
}