gistfile1.html

<form action="" name="fm2">
	<fieldset id="simpleForm">
		<p>
			<label class="aui-field-label" for="name.dot">Email:</label>
			<input type="text" name="name.dot" id="name.dot" />
		</p>


		<p>
			<input class="aui-button-input" type="submit" value="Submit" />
			<input class="aui-button-input" type="reset" value="Reset" />
		</p>
	</fieldset>
</form>

<script>

	var validator2 = new A.FormValidator({
		boundingBox: document.fm2,

		fieldContainer: 'p',

		rules: {
			'name.dot': {
				required: true,
				rangeLength: [2,50]
			}
		}
	});

</script>