Can I use htaccess to change http to https in image tags when needed?

I purchased a php script I'm using on a site.

I want to secure some of the pages (https).... however, in this rather complex script, all the images are absolute and point to http://www...  which causes a security warning saying parts of the page aren't secure.

Is there a way that I can use htaccess to change any reference to 'background="http://www.'  and 'img src="http://www.'   on the page to their https equivilents before the page is sent to the user?

If not, any other thoughts on this, other than rewriting the whole php script?


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start the output-buffer with at the beginning of the https-page:

<?php ob_start('makehttps'); ?>

function makehttps($text) {
   $text = str_replace('background="http://www.', 'background="https://www.', $text);
   return $text;

Rest will be done by php.
St_Aug_Beach_BumAuthor Commented:
oh, I'm using Apache/1.3.27 (Unix)  (Red-Hat/Linux)  if that makes a difference....
St_Aug_Beach_BumAuthor Commented:
Cool :)

Thank you,

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