function showlarge(url, width, height) 
{

  if (width > screen.width || height > screen.width)
  {
    if (width > screen.width && height <= screen.height)
    {
      var nwidth = screen.width - 70;
      var nheight = parseInt(height) + 36
    }
    if (height > screen.height && width <= screen.width)
    {
      var nheight = screen.height - 70;
      var nwidth = parseInt(width) + 36
    }
    if (width > screen.width && height > screen.height)
    {
      var nheight = screen.height - 70;
      var nwidth = screen.width - 70;
    }

    window.open(url,"_blank","width=" + nwidth + ",height=" + nheight + ",left=0,top=0,scrollbars=yes,resizable=yes");

  }
  else
  {
    var nheight = parseInt(height) + 40;
    var nwidth = parseInt(width) + 40; 
    window.open(url,"_blank","width=" + nwidth + ",height=" + nheight + ",scrollbars=no,resizable=no,directories=no,location=no,menubar=no,status=no,toolbar=no");
  }
}