Mootools

The Mootools JavaScript framework offers some excellent, easy to use components for implementing Ajax functionality. To use Mootools, download the code from mootools.net/download (put a tick in the ajax item near the bottom of the list and then click the download button) and save it in your extensions directory.

The code needs to be loaded by the MediaWiki page, which can be achieved a number of ways:
 * By leaving it up to the MediaWiki extension which requires Mootools and following that extensions installation instructions
 * By adding something like  directly into your skin file
 * By adding the Mootools code into your  article

mwInsertEditButton(toolbar, mwEditButtons[i]); }       for (var i = 0; i < mwCustomEditButtons.length; i++) { mwInsertEditButton(toolbar, mwCustomEditButtons[i]); }
 * i++) {

Live preview problem
Currently including Mootools conflicts with the new experimental live preview feature in MediaWiki.