var frmvalidator = new Validator("contactform");
        frmvalidator.EnableMsgsTogether();
        frmvalidator.addValidation("email","email","Please make sure you enter a valid email address.<br />");

        <!-- custome validation to check name entered -->
        function DoCustomValidation2()
        {
            var frm = document.forms["contactform"];
            if(frm.name.value == 'Your name')
            {
                sfm_show_error_msg("Please enter your name.<br />");
                return false;
            }
            else
            {
                return true;
            }
        }	
        frmvalidator.setAddnlValidationFunction(DoCustomValidation2);

        <!-- custome validation to check for at least phone or email being supplied -->
        function DoCustomValidation3()
        {
            var frm = document.forms["contactform"];
            if(frm.telephone.value == 'Telephone number')
            {
                sfm_show_error_msg("Please enter your telephone number.<br />");
                return false;
            }
            else
            {
                return true;
            }
        }	
        frmvalidator.setAddnlValidationFunction(DoCustomValidation3);