x
 
<html>
<body>
<form>
Male: <input id="male" alt="male" type="radio" name="Sex" value="Male" />
<br />
Female: <input id="female" alt="female" type="radio" name="Sex" value="Female" />
</form> 
<p>The alt text for the radio buttons are:
<script type="text/javascript">
document.write(document.getElementById('male').alt);
document.write(" and ");
document.write(document.getElementById('female').alt);
</script></p>
</body>
</html>