MediaWiki:Gadget-VisualFileChange.js

Note: After saving, you have to bypass your browser's cache to see the changes. Internet Explorer: press Ctrl-F5, Mozilla: hold down Shift while clicking Reload (or press Ctrl-Shift-R), Opera/Konqueror: press F5, Safari: hold down Shift + Alt while clicking Reload, Chrome: hold down Shift while clicking Reload.

This user script seems to have a documentation page at MediaWiki:Gadget-VisualFileChange.

$( function () {
	var link = mw.util.addPortletLink( 'p-tb', '#', window.vFC_PortletText || 'Perform batch task', 't-AjaxQuickDeleteOnDemand' );
	if(link) {
		link.addEventListener( 'click', function ( e ) {
			e.preventDefault();
			mw.loader.load( 'ext.gadget.VisualFileChange.core' );
		} );
	}
} );