Cacher is the code snippet organizer for pro developers

// validator for exact 4 digits and numeric
ijQuery.validator.addMethod( 'vatvalidator', function( value, element ){
            if( value.length < 5){
                return false;
            }
            else{
                return true;
            }
  }); // validator
    var name = 'Postnummer *';
    ijQuery( 'form [name="' + base64_encode( name ) + '"]' ).addClass( 'number' );
    ijQuery( 'form [name="' + base64_encode( name ) + '"]' ).addClass( 'vatvalidator' );
    ijQuery( 'form [name="' + base64_encode( name ) + '"]' ).attr('maxlength', '4');
    ijQuery.extend( ijQuery.validator.messages,{  vatvalidator: 'field: too short.'} );   
  // end zip-code validator