Possible Duplicate:
How to make an ajax call without jquery?
I have a function where I need to make an update to my database using an ajax call. For speed reasons, I would prefer it if I didn't have to include the jquery source file on this page and therefore use the $.ajax function to perform my post request to the php file, although this would make performing the ajax call via POST a lot easier.
I have seen on here how to do this using the GET method but have not found any help for doing a non-jquery ajax call using the POST method. Since this call will make changes to my database, I do not want to use the GET method.
UPDATE:
Going the jquery route: The actual task performed is lower priority to loading the rest of the page. Is there any way I can guarantee that the ajax call (including loading jquery) is the very last javascript thing to go off as the page loads?