not insert<script type="text/javascript" language="javascript">
function validateRegister()
{
   
	var frm = document.test;
    if(frm.name.value=='')
    {
      alert('please enter name.');
      frm.name.focus();
      return false;
    }
    else if(frm.email.value=='')
    {
      alert('please insert email.');
      frm.email.focus();
      return false;
    }
    else
    {
      frm.submit();	
    }
} 
</script>
<form name="test" action="" method="post">
<table border="    ">
  <tr>
    <td>name&nbsp;</td>
    <td><input type="text" name="name" />&nbsp;</td>
  </tr>
  <tr>
    <td>Email&nbsp;</td>
    <td><input type="text" name="email" />&nbsp;</td>
  </tr>
  <tr>
    <td colspan="2"><input type="hidden" name="action" value="Register" />
				<input type="button" name="btnSubmit" value="Submit" onClick="return validateRegister();"/>&nbsp;</td>
  </tr>
</table></form>