File upload via Zoho.writeInput

Hi there,

I'm working on a html form via the following tutorial:
writer.zoho.com/public/help/creator-client-api/fullpage

Everything goes fine except the file input.

When I do the following nothing appears:
<td><script type="text/javascript">Zoho.writeLabel("Copy1");</script></td>
<td><script type="text/javascript">Zoho.writeInput("Copy1");</script></td>

Is there a way to put an input file to the form?

Thanks in advance,
Greetings
Roudy