function trim(s)
{
  while (s.substring(0,1) == ' ')
    s = s.substring(1,s.length);

  while (s.substring(s.length-1,s.length) == ' ')
    s = s.substring(0,s.length-1);

  return s;
}



function Popup(Url, H, L)
{
  var fen=window.open(Url,"fen","scrollbars=yes,menubar=no,resizable=no,width="+L+",height="+H+",top="+(screen.height-H)/2+",left="+(screen.width-L)/2+"");
  if (fen.opener == null)
    fen.opener = self;
  fen.focus();
}