$.validator.defaults.highlight = function ( element, errorClass, validClass ) {
            if ( element.type === "radio" ) {
                this.findByName( element.name ).addClass( errorClass ).removeClass( validClass );
            } else {
                $( element ).addClass( errorClass ).removeClass( validClass );
            }
        };
$.validator.defaults.unhighlight =  function ( element, errorClass, validClass ) {
            if ( element.type === "radio" ) {
                this.findByName( element.name ).removeClass( errorClass ).addClass( validClass );
            } else {
                $( element ).removeClass( errorClass ).addClass( validClass );
            }
        };