function CheckPost()
{
 if(document.form1.ReplyName.value=="")
 {
  alert("Please enter the  Name, thanks! ");
  document.form1.ReplyName.focus();
  return false;
  }
   if(document.form1.ReplyMail.value=="")
 {
  alert("Please enter the email, thanks! ");
  document.form1.ReplyMail.focus();
  return false;
  }
   if(document.form1.ReplyWeb.value=="")
 {
  alert("Please enter the Website, thanks! ");
  document.form1.ReplyWeb.focus();
  return false;
  }  

   if(document.form1.ReplyContent.value=="")
 {
  alert("Please enter the Content, thanks! ");
  document.form1.ReplyContent.focus();
  return false;
  } 
  return true;
}