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.
mw.loader.using(['mediawiki.util','mediawiki.api.edit'],function(){'use strict';if(mw.config.get('wgNamespaceNumber')===14&&!$('.Taxonavigation').length){mw.util.addPortletLink('p-tb','#','Taxon','t-taxon','Lägg till kategorin "Biology pages without Taxonavigation"');$('#t-taxon').click(function(e){e.preventDefault();varapi=newmw.Api();api.postWithToken('edit',{action:'edit',title:mw.config.get('wgPageName'),summary:'Adding [[:Category:Biology pages without Taxonavigation]] via [[User:Josve05a/taxa.js]]',appendtext:'\n[[Category:Biology pages without Taxonavigation]]'});});}});//</nowiki>