function confirmdel(id){
       if (confirm("确定要删除这条留言?")) 
       window.location.href="delete_message.asp?id="+id
} 
function Juge(theForm)
{
  if (theForm.u_name.value == "")
  {
    alert("请输入您的网名!");
    theForm.u_name.focus();
    return (false);
  }
	if (theForm.T_Content.value == "")
	{
		alert("请您输入您的留言内容");
		theForm.T_Content.focus();
		return (false);
	}
}
 
 function changeimage()
 { 
  document.showimages.src=document.form1.image.value;
 }