$('#WikiHeader').append('<span class="wikia-button" onclick="name_of_function();">Text on the button</span>');

$.getJSON('/api.php?action=query&prop=revisions&titles=' + wgPageName + '&rvprop=content&indexpageids=1&format=json', function(result) {

 result.query.pages[result.query.pageids[0]].revisions[0]['*']
 $('a.new')

var ref = 0;
while(text.indexOf('[[', ref) != -1) {
	if(text.indexOf(']]', text.indexOf('[[', ref)) != -1) {
		var open = text.indexOf('[[', ref);
		var pipe = text.indexOf('|', open);
		var close = text.indexOf(']]', open);
		if(text.indexOf('<br/>', open) != -1 && text.indexOf('<br/>', open) < close) {ref = open + 1; continue;}
		if(pipe != -1 && pipe < close) { //is [[page|display]]
			if(pipe == close - 1) {
				var title = text.substring(open + 2, pipe);
				var display = title.substring(title.indexOf(':') + 1);
			}
			else {
				var title = text.substring(open + 2, pipe);
				var display = text.substring(pipe + 1, close);
			}
		}
		else { //is [[page]]
			var title = text.substring(open + 2, close);
			var display = title;
		}
		if(!title) {ref = open + 1; continue;} //skip [[]] and [[|<anything>]]

		for(var i = 0; i < redlinks.length; i++) {
			if(title[0].toUpperCase() + title.substring(1) == redlinks[i].title.substring(0, ' (page does not exist)'.length)) {
				if(pipe == close - 1) {var show = title;}
				else {var show = display;}
				text = text.substring(0, open) + show + text.substring(close + 2);
				break;
			}
		}
		ref = open + 2;
	}
	else {break;}
}

});

 $.getJSON('action=query&prop=info&titles=' + wgPageName + '&intoken=edit&indexpageids=1&format=json', function(result) { var token = result.query.pages[result.query.pageids[0]].edittoken; });
 $.post('/api.php', {action: 'edit', title: wgPageName, text: text, summary: 'Fixing redlinks', token: token}, function() {window.location.reload();});