Thank you all for your remarks and ideas. But.... I think (no: I know!) it is much simpler after all. No need for extra js script, simply use: /includes/EditPage.php and make some modifications in $toolarray = array(: For instance take: array( 'image' => 'button_nowiki.png', 'id' => 'mw-editbutton-nowiki', 'open' => "<nowiki>", 'close' => "</nowiki>", 'sample'=> wfMsg('nowiki_sample'), 'tip' => wfMsg('nowiki_tip'), 'key' => 'N' ) Copy and change it par example in a button for an intern anchorlink: array( 'image' => 'intern.gif', 'id' => 'mw-editbutton-exlink', 'open' => "[[#", 'close' => "|to headline]]", 'sample'=> 'This Head', 'tip' => 'a link to 'This Head' on the same page - remind the caption ', 'key' => '' ),
And you have a superior button!