nak5ive

I've built a custom image gallery, integrated with a database. all of the images are kept above the document root in a "media" directory (for security purposes); therefore, i am using a php script in the src attribute of the image tags to display the image in the browser. to accomplish this, i chose to use the PEAR package "HTTP_Download", which worked great and performed fantastically on my staging server. I chose to use content-disposition inline, and set caching options on. the problem, the images don't cache on a users machine. therefore, everytime the page is changed to display a new image, all of the thumbnails are downloaded once again...very annoying. let me re-iterate, these files are not being generated on the fly, simply sent to the user via php. here is an example of an image src attribute: <img src="http://url.com/download/image?s=gt&id=2e7bea0eeb438cccb6232ec7d46cdc0c"/> here are sample headers being sent to and from the browser: Response Headers Date Mon, 23 Jul 2007 19:15:33 GMT Server Apache/2.2.4 (Win32) mod_python/3.3.1 Python/2.4.3 PHP/5.2.0 X-Powered-By PHP/5.2.0 Expires Thu, 19 Nov 1981 08:52:00 GMT Cache-Control public, must-revalidate, max-age=0 Pragma cache Accept-Ranges bytes x-sent-by PEAR::HTTP::Download Last-Modified Sat, 21 Jul 2007 02:38:18 GMT content-disposition inline; filename="37.jpg" Etag "9c4ccc931266077ac50cbe1a6150c811-1783420111" Content-Length 4206 Content-Type image/jpeg Request Headers Host kingthief.nak5.com User-Agent Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.5) Gecko/20070713 Firefox/2.0.0.5 Accept application/x-shockwave-flash,text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5 Accept-Language en-us,en;q=0.5 Accept-Encoding gzip,deflate Accept-Charset ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive 300 Connection keep-alive Referer http://url.com/gallery/?p=5751e61698d4d66fafaa8f0bb4f4926c Cookie kingthief=mgcdn8ama8r4r4qeku1qjqpk70 If-Modified-Since Sat, 21 Jul 2007 02:38:18 GMT If-None-Match "9c4ccc931266077ac50cbe1a6150c811-1783420111" does anyone know of a good script that will cache images on a local browser in this way? waiting for thumbnail re-loading everytime the page changes is just horrible... thanks! Al.