function verify(obj)

{

  if (obj.name.value == "")

    {

        window.alert("Please enter your name.");

        obj.name.focus();

        return false;

    }

    if (obj.email.value == "")

    {

        window.alert("Please enter your email.");

        obj.email.focus();

        return false;

    }

    if (obj.comments.value == "")

    {

        window.alert("Please enter your message.");

        obj.comments.focus();

        return false;

    }

    return true;

}