Here is the situation:

<!-- declare the array -->
<script type="text/javascript">
var prefix = new Array();
prefix['type'] = 'label';
prefix['text'] = 'more';
</script>

<!-- Call the function addField and attempt to pass the array -->
<input type="button" value="Add more field" onclick="addField(prefix);" />

I'm trying to pass an array into a function, which is called when the user clicks on the button but this does not seem to work. Any suggestion is really appreciated.

Thanks all.

Try changing your button code to read

<input type="button" value="Add more field" onclick="addField(window.prefix);" />

It was a "scope" problem. I declared the variable when the user clicks on the button and it works. I will try your suggestion as well.

Thank you.