rotating images works in IE not FF

Hi Everyone, I have a java script for randomly rotating images on a site that works fine in IE but does not show anything at all in FF, here is the code I am using, any advice at all would be most appreciated.
Thank you all in advance.
<img name="img1" width="326" height="240" hspace="7" border="1" /><br />
</p></td>
<script language="JavaScript">
images = new Array(7);
images[0] = "./hpphoto/tn_photo1.jpg";
images[1] = "./hpphoto/tn_photo2.jpg";
images[2] = "./hpphoto/tn_photo3.jpg";
images[3] = "./hpphoto/tn_photo4.jpg";
images[4] = "./hpphoto/tn_photo5.jpg";
images[5] = "./hpphoto/tn_photo6.jpg";
images[6] = "./hpphoto/tn_photo7.jpg";
index = Math.floor(Math.random() * images.length);
img1.src=images[index];
</script>
here is the site url: http://youreonlinetoday.com/paramount/index.php

Thanks again!!

 

I checked your site via the W3C checker:

http://validator.w3.org/check?uri=h...up=0&verbose=1&user-agent=W3C_Validator/1.654

and it does show several errors throughout the code, with a few in the code area you are looking at. When you click the link above, look around the area of lines 153-155. Might help.

http://validator.w3.org/