JQuery Validate Custom Rule

## JQuery Validate Custom Rule
<!DOCTYPE html>
<html>
<head>
	<script src="https://code.jquery.com/jquery-2.2.4.min.js"></script>
	<script src="http://ajax.microsoft.com/ajax/jquery.validate/1.15.0/jquery.validate.min.js"></script>
	<script src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.15.0/additional-methods.min.js"></script>
	<script>

		$(document).ready(function(){
			$.validator.addMethod("mustbeyoungerthan", function(value, element) {
				var max = $(element).attr('data-rule-mustbeyoungerthan');
				if (parseInt(value) > parseInt(max))
					return false;
				return true;
			}, "Default error message.");

			$("#registerForm").validate();
		});
	</script>
</head>
<body>
	<h1>Form Validation Example</h1>
	<form id='registerForm' name='registerForm' method='post' action='' class="validate" >
		<p>
			Name: <input type='text' name='name' id='name' class='required' />
		</p>
		<p>
			Email: <input type='text' name='email' id='email' class='required' />
		</p>
		<p>
			Age: <input type='text' name='age' id='age' data-rule-mustbeyoungerthan="50" data-msg-mustbeyoungerthan="Invalid age range."/>
		</p>
		<p>
			<input type='submit' name='Submit' value='Submit' />
		</p>
	</form>

</body>
</html>