var myWin;

function opentest(srci,xx,yy)  {

  if (myWin) myWin.close();
  myWin = open("", "displayWindow","width="+xx+",height="+yy+",status=no,toolbar=no,menubar=no,resizable=yes,scrollbars=yes");
  myWin.document.open();
  myWin.document.write(srci);
  myWin.document.close();
}