<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
</head>
<body>
<div class="container">
<form action="" id="register-form" method="post" autocomplete="off">
<div id="register-username-group" class="form-control">
<label class="sr-only" for="register-username">Enter Your Username</label>
<input id="register-username" class="form-control" type="text" placeholder="Enter Your Username" required="true" />
<span id="register-username-message" class="help-block"></span>
</div>
<div id="register-email-group" class="form-control">
<label class="sr-only" for="register-email">Enter Your Email Address</label>
<input id="register-email" class="form-control" type="text" placeholder="Enter Your Email Address" required="true" />
<span id="register-email-message" class="help-block"></span>
</div>
<div id="register-confirm-email-group" class="form-control">
<label class="sr-only" for="register-confirm-email">Confirm Your Email Address</label>
<input id="register-confirm-email" class="form-control" type="text" placeholder="Confirm Your Email Address" required="true" />
<span id="register-confirm-email-message" class="help-block"></span>
</div>
<div id="register-password-group" class="form-control">
<label class="sr-only" for="register-password">Enter Your Password</label>
<input id="register-password" class="form-control" type="text" placeholder="Enter Your Password" required="true" />
<span id="register-password-message" class="help-block"></span>
</div>
<div id="register-confirm-password-group" class="form-control">
<label class="sr-only" for="register-confirm-password">Confirm Your Password</label>
<input id="register-confirm-password" class="form-control" type="text" placeholder="Confirm Your Password" required="true" />
<span id="register-confirm-password-message" class="help-block"></span>
</div>
<input type="submit" class="btn btn-block btn-primary" value="Register Now" />
</form>
</div>
</body>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<script src="path/to/feVor.js"></script>
<script>
$(document).ready(function() {
feVor.validate({
"register-form": {
"register-username": ['min:4', 'max:20'],
"register-email": ['min:6', 'max:50', 'email'],
"register-confirm-email": ['same:register-email'],
"register-password": ['min:6', 'max:16', 'password'],
"register-confirm-password": ['same:password']
}
});
});
</script>
</html>