Input[] Array Validation

I need to get the values (for validation) of a php style html input array:

<input type="file" name="image[]">
<input type="file" name="image[]">
<input type="file" name="image[]">
<input type="file" name="image[]">

The PHP faq gives an example:

variable = documents.forms[0].elements['var[]'];

http://ca3.php.net/manual/en/faq.ht...select-multiple

But that doesn't actually work, for me.

What would be the proper way to loop through each of the upload inputs
and get the value?