function showWk(rd,ht) {
  _screenHeight = screen.height;
  if(ht > _screenHeight-(_screenHeight/10)) {
  	ht = _screenHeight-(_screenHeight/10); }
  var popWin = window.open('wk.asp?rn='+rd,'wk','width=612,height='+ht+',scrollbars=yes,resizable=yes');
  popWin.focus();
}