Toggle Buttonset - Selection Event Callback

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.11/themes/base/jquery-ui.css">
<span id="tod_quant" class="buttonset">
        <input type="radio" id="tod_quant5" name="tod_quant" value="5" /><label for="tod_quant5">5-Minute</label>
        <input type="radio" id="tod_quant60" name="tod_quant" checked="checked" value="60" /><label for="tod_quant60">60-Minute</label>
</span>

JavaScript

$('#tod_quant').buttonset();
$('#tod_quant input[type=radio]').change(function() {
     alert(this.value);  
})