Centering an image generated by a javascript!

HI! I'm going INSANE! I just can't figure out this, and I've been stuck in this small detail for days...!

I want to center with CSS an image generated by a java script!

I have a contact form in HTML with a CAPTCHA verification, so in the head I include the java script needed to generate the image:

<script type="text/javascript" src="includes/jcap.js"></script>

Then, in the form I add this cell where the image that is generated by the java script is displayed:

<td colspan="2"><script type="text/javascript">cimg()</script></td>


So at last, in the java script invoked at the head, it does this to display the image in the HTML:

document.write('<img src="'+imgdir+imgid+'.gif" width=240 height=80 alt="Captcha Image" /></a>');

So, I have tryed many ways, and I can't seem to find a way to center the imaged generated by the java script... So, any suggestion? Thanks in advanced!

Perhaps this will help.


<td colspan="2" style="text-align: center;"><script type="text/javascript">cimg()</script></td>

Hi!

I found the issue, I had a float:left in the style sheet so the image went to the left all the time, thanks a lot!