<form action="" id="form">
	<fieldset>
	<legend>Tabulao automtica</legend>
	<label>maxlenght = 1</label><input type="text" maxlength="1" />
	<label>maxlenght = 2</label><input type="text" maxlength="2" />
	<label>maxlenght = no setado</label><input type="text" />
	<label>maxlenght = 3</label><input type="text" maxlength="3" />
	<label>disabled</label><input type="text" maxlength="4" disabled="disabled" />
	<label>select simples</label><select><option>opo blablablabla</option>
		<option>opo bleblebleble</option></select>
	<label>maxlenght = 6</label><input type="text" maxlength="6" />
	</fieldset>
</form>

<script type="text/javascript">
//<![CDATA[

autoTab(document.forms.form);

//]]>
</script>