Untitled

<script src="http://ajax.microsoft.com/ajax/jquery.validate/1.7/jquery.validate.pack.js" type="text/javascript"></script>
<script type="text/javascript">
(function()
{
 $("#myform").validate(
 {
  rules:
  {
   contactname: "required",
   email:
   {
    required: true,
    email: true
   }
  },
  messages:
  {
   contactname: "Please enter a contact name"
  }
 });
})();