<form id="exm" method="POST" action="#">
    <div>
        <label>Required :</label>
        <input type="text" name="name" data-validetta="required">
    </div>
    <div>
        <label>Email :</label>
        <input type="text" name="email" data-validetta="email">
    </div>
    <button type="submit">Submit</button>
    <button type="reset">Reset</button>
</form>

(function($){
    $('#exm').validetta({
        realTime: true,
        display : 'inline',
        errorTemplateClass : 'validetta-inline',
        onValid : function( event ) {
            event.preventDefault();
            alert('Success');
        }
    });
});