function SetCwinHeight(obj)
{
  var cwin=obj;
  if (document.getElementById)
  {
    if (cwin && !window.opera)
    {
      cwin.style.display="block";
	  if (cwin.contentDocument && cwin.contentDocument.body.offsetHeight) //如果用户的浏览器是NetScape
          cwin.height = cwin.contentDocument.body.offsetHeight; 
		
      else if(cwin.Document && cwin.Document.body.scrollHeight) //如果用户的浏览器是IE
          cwin.height = cwin.Document.body.scrollHeight;
    }
  }
}