Revamp this a little and make it jQuery 1.7 compatible (fixes issue 803)

NEWS.mdtext

@@ -3,6 +3,7 @@
 ## Bugfixes
 
 - Compatiblity fixes for PostgreSQL (fixes issue 800)
+- Fix TOC generation in wiki (issue 803)
 
 ## Language and Translations
 

www/media/idf/js/wiki-toc.js

@@ -1,9 +1,12 @@
 $(document).ready(function() {
     $(":header", "#wiki-content").map(function(index) {
-        this.id = "wikititle_" + index;
-        $("<a href='#" + this.id + "'>" + jQuery.fn.text([this]) + "</a>")
-            .addClass("wiki-" + this.tagName.toLowerCase())
-            .appendTo('#wiki-toc-content');
+        var $header = $(this);
+        var $toc = $('#wiki-toc-content');
+        $header.attr('id', 'wikititle_' + index);
+        $('<a />').attr('href', '#' + $header.attr('id'))
+            .text($header.text())
+            .addClass("wiki-" + $header[0].tagName.toLowerCase())
+            .appendTo($toc);
     });
     if ($('#wiki-toc-content *').size() < 2)
         $('#wiki-toc').hide();