Javascript show/hide not working in WP 2.8 widget section

[namus25]

I'm using a simple javascript to show/hide some content in the widget section of wordpress 2.8.2. But the show hide functionality doesn't work at all. Below is the code I used in widget:

<a href='toggleME()'>Toggle</a>
<div id='div1' style='display:none'>Show/Hide Me</div>
<script>
function toggleME(){
var div1 = document.getElementById('div1');
if (div1.style.display == 'none') {
div1.style.display = 'block';
} else {
div1.style.display = 'none';
}
}
</script>

You can also download a sample plugin here to test with:
<a href="​http://www.maxblogpress.com/temp/widget2.8.zip">​http://www.maxblogpress.com/temp/widget2.8.zip</a>

<a href='toggleME()'>? How about <a href='' onclick='function(){toggleME();return false;}'>? Or even better jQuery('#toggleME').toggle().

No feedback in two weeks and probably the plugin's js needed update.