jQuery Validator

Set the rules property of the jqxValidator. Author: http://jqwidgets.com

HTML

<script src="https://jqwidgets.com/public/jqwidgets/jqx-all.js"></script>
<link rel="stylesheet" href="https://jqwidgets.com/public/jqwidgets/styles/jqx.base.css">
<link rel="stylesheet" href="https://jqwidgets.com/public/jqwidgets/styles/jqx.energyblue.css">
<form id="testForm" action="./">
    <table class="register-table">
        <tr>
            <td>Username:</td>
            <td>
                <textarea id="userInput"></textarea>
            </td>
        </tr>
        <tr>
            <td>E-mail:</td>
            <td>
                <textarea id="emailInput" class="text-input"></textarea>
            </td>
        </tr>
    </table>
</form>
<input type="button" style="margin:30px;" id="jqxbutton" value="Submit" />

CSS

.jqx-validator-hint{
  margin-top:12px;
}

JavaScript

$('#testForm').jqxValidator({
 position: 'bottom',
   rules: [

     {
         input: '#userInput',
         message: 'Username is required!',
         action: 'blur',
         rule: 'required'

     },

     {
         input: '#emailInput',
         message: 'Invalid e-mail!',
         action: 'blur',
         rule: 'email'

     }],
 });
 $("#jqxbutton").jqxButton({
     theme: 'energyblue',
     width: 100,
     height: 30
 });
 $("#jqxbutton").click(function () {
     $('#testForm').jqxValidator('validate');
 });