Turning/unloading off jquery? I'm working on themeing a single site of a multi-site Drupal install.  The organization that set up the site has jquery 1.2.6 installed which is fine for most things... but as I'm planning on using a few other javascript libraries and maybe a few $.ajax calls, I was hoping for a more up to date jquery for the sake of compatibility.

Is there a way I can write a javascript call to remove the:

&lt;script type="text/javascript" src="/misc/jquery.js?K"&gt;&lt;/script&gt; 


and then call my own?
You cannot just push a newer version jQuery by adding/replacing the  tag. Drupal and some modules bundles their own JavaScript that rely on that specific version of jQuery, updating jQuery may break these JavaScript. Most of these script require the jQuery object (from jQuery 1.2.6) to be binded to $.

If really needed, you can load an newer version of jQuery in noConflict mode, treating the old jQuery as a an other library. So $ will still be the old jQuery object for the existing script. Andyou can use newer jQuery version using jQuery in your script. Properly written plugins and libraries should access the jQuery object using jQuery instead of $ and so should be loadable (after calling the noConflict() method). IF not, you may need to fix them.