function validate()
 {
  if (document.contactform.name.value == "")
  {
    alert("Please enter a value for Name.");
    document.contactform.name.focus( );
    return false;
  }
  if (document.contactform.email.value == "")
  {
    alert("Please enter a value for Email Address.");
    document.contactform.email.focus( );
    return false;
  }
  if (document.contactform.phone.value == "")
  {
    alert("Please enter a value for Phone Number.");
    document.contactform.phone.focus( );
    return false;
  }
 }