Trying to duplicate a Form field without success

I'm using the phpMotion script and trying to add a 2nd "tag" field to the Upload Video Form. (The 'tag' field is for entering tags or search words, so the video can be found when searching).

<li style="width:240px; text-align:right;"><strong>[var.lang_tags]:</strong></li>

<li style="width:400px; text-align:left;"><input name="tags" type="text" class="upload-video-form-input" value="[var.tags]" size="38" />
</li>

PHP:

I copied and duplicated that code, like so:

<li style="width:240px; text-align:right;"><strong>[var.lang_tags]:</strong></li>
<li style="width:400px; text-align:left;"><input name="tags" type="text" class="upload-video-form-input" value="[var.tags]" size="38" />
</li>

<li style="width:240px; text-align:right;"><strong>[var.lang_tags]2:</strong></li>
<li style="width:400px; text-align:left;"><input name="tags" type="text" class="upload-video-form-input" value="[var.tags]" size="38" />
</li>

PHP:

But upon submitting the Form, Tags2: (the duplicated line) was required to proceed, not the original Tag field.

Can you tell me what else I need to do to create a second (required) Tag field?

 

You can't have multiple fields with the same name - the last one will be the only one put through. Besides, that html code for the form is utter gibberish :-\