function validate_form ( )
{
	valid = true;

        if ( document.contact_form.Collegename.value == "" )
        {
                alert ( "Please fill in the 'College Name' box." );
                valid = false;
        }
        if ( document.contact_form.Contactname.value == "" )
        {
                alert ( "Please fill in the 'Course Tutor Name' box." );
                valid = false;
        }
        if ( document.contact_form.Emailaddress.value == "" )
        {
                alert ( "Please fill in the 'Email Address' box." );
                valid = false;
        }
   



        return valid;
}