function validate_form ()
{
    valid = true;

    if 
	( 
	(document.contact.Name.value == " Name") ||
	(document.contact.LastName.value == " Last Name") ||
	(document.contact.Email.value == " Email") ||
	(document.contact.Subject.selectedIndex  == 0)
	 )
    {
        alert ( "Please fill out all items, so we can know you better." );
        valid = false;
    }

    return valid;
}