function checksubmitcommentform()
{
  if (document.comment_form1.name.value == "")
  {
   alert("Error : Please fill in your name")
   document.comment_form1.name.focus()
   return false
  }
  if (document.comment_form1.comment.value == "")
  {
   alert("Error : Please add your comments")
   document.comment_form1.comment.focus()
   return false
  }
  if (document.comment_form1.antispam.value == "")
  {
   alert("Error : can not be empty")
   document.comment_form1.antispam.focus()
   return false
  }
 return true
}