Banner rotator "cachnig" problem

[c4n]

This probably can be explained much more simple, but here's my way:

Let's say I have to pages - "page1.htm" and "page2.htm".

On both pages I use a banner displayed by a banner rotator. First I am on page1 and I see banner1 on it. Then I go to page2 and see again banner1, but I would like to see banner2.
Now I click the "Back" button in my Browser (IE5.5) and it takes me back to page1 where I again see banner1 (but would like to see banner3 now)!

So, is there a way to prevent caching the banner1 WHITOUT using <META HTTP-EQUIV=&quot;Pragma&quot; CONTENT=&quot;no-cache&quot;>? The problem is I am using <SCRIPT language=Javascript src=&quot;banner_rotator.cgi&quot;></SCRIPT> to display the banner but my browser but the browser saves output of the CGI in &quot;Temporary Internet Files&quot; folder and uses it on all pages (so I have to reload a page to get a new banner).

Below is a simple Perl code I use. Any ideas?

Thanks!

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#!/usr/bin/perl

$mypic[0]=&quot;<a href=link.htm><img src=image.gif height=60 width=468 alt=Banner1></a>&quot;;
$mypic[1]=&quot;<a href=link.htm><img src=image2.gif height=60 width=468 alt=Banner2></a>&quot;;
$mypic[2]=&quot;<a href=link.htm><img src=image3.gif height=60 width=468 alt=Banner3></a>&quot;;

srand;
$i = int(rand(2));

print &quot;Content-type: text/html\n\n&quot;;
print &quot;document.write('$mypic[$i]');&quot;;

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