debug

www/js/autodoc.js

   $('.autodoc_tag_list').change(function(e) {
     console.log(e);
     var tagId    = $('.autodoc_tag_list').val();
-    var tagName  = $('.autodoc_tag_list').children("option:selected").val();
+    var tagName  = $('.autodoc_tag_list').children("option:selected").html();
     var tagColor = $('.autodoc_tag_list').children("option:selected").attr('data');
 
     console.log(tagId, tagName, tagColor);