YUI Buttons not passing value in firefox (linux)?

Question

Hello

The following code works in IE and Chrome (linux) but will not working in Firefox. Any Ideas why? This is using the YUI 2 developer tools. It will display the buttons, however it does not pass the actual value of the radio buttons.

// php
<? print_r($_POST); ?>

// html 

var oButtonGroup3 = new YAHOO.widget.ButtonGroup({
                                    id:  "buttongroup3",
                                    name:  "radiofield3",
                                    container:  "radiobuttonsfromjavascript" });

    oButtonGroup3.addButtons([

{ label: "Radio 9", value: "Radio 9", checked: true },
{ label: "Radio 10", value: "Radio 10" },
{ label: "Radio 11", value: "Radio 11" }, 
{ label: "Radio 12", value: "Radio 12" } 

]);
var onCheckedChange = function (e) {

    alert(e.prevValue);

};
</script>

<form name="test" method="post">
<div id="radiobuttonsfromjavascript"></div>
<input type="submit" value="submit">

</form>