If you are using JavaScript, jQuery, and HTML5 I have a custom validation here: https://github.com/jboss-developer/jboss-wfk-quickstarts/blob/master/kitchensink-backbone/src/main/webapp/index.html#L103
If you are using JavaScript, jQuery, and HTML5 I have a custom validation here:
https://github.com/jboss-developer/jboss-wfk-quickstarts/blob/master/kitchensink-backbone/src/main/webapp/index.html#L103