I have an input that I want to display a custom error message on when the user doesn\'t fill it out.
Use:
data-msg-required="Please enter something here!"
Here's a demo HTML code: https://github.com/jzaefferer/jquery-validation/blob/master/demo/custom-messages-data-demo.html
JS Fiddle demo: http://jsfiddle.net/leniel/VuPPy/48/