diff --git a/lib/ace/ace.js b/lib/ace/ace.js
index d31ceb3a..69c21274 100644
--- a/lib/ace/ace.js
+++ b/lib/ace/ace.js
@@ -39,8 +39,8 @@ define(function(require, exports, module) {
 
 require("./lib/fixoldbrowsers");
 
-var Dom = require("./lib/dom");
-var Event = require("./lib/event");
+var dom = require("./lib/dom");
+var event = require("./lib/event");
 
 var Editor = require("./editor").Editor;
 var EditSession = require("./edit_session").EditSession;
@@ -54,41 +54,48 @@ require("./keyboard/hash_handler");
 require("./placeholder");
 require("./mode/folding/fold_mode");
 exports.config = require("./config");
-    /**
-     * Embeds the Ace editor into the DOM, at the element provided by `el`.
-     * @param {String | DOMElement} el Either the id of an element, or the element itself
-     * 
-     **/
+
+/**
+ * Embeds the Ace editor into the DOM, at the element provided by `el`.
+ * @param {String | DOMElement} el Either the id of an element, or the element itself
+ *
+ * This method embeds the Ace editor into the DOM, at the element provided by `el`.
+ *
+ **/
 exports.edit = function(el) {
     if (typeof(el) == "string") {
         var _id = el;
-        if (!(el = document.getElementById(el)))
+        var el = document.getElementById(_id);
+        if (!el)
             throw "ace.edit can't find div #" + _id;
     }
 
     if (el.env && el.env.editor instanceof Editor)
         return el.env.editor;
 
-    var doc = new EditSession(Dom.getInnerText(el));
-    doc.setUndoManager(new UndoManager());
+    var doc = exports.createEditSession(dom.getInnerText(el));
     el.innerHTML = '';
 
-    var editor = new Editor(new Renderer(el, require("./theme/textmate")));
+    var editor = new Editor(new Renderer(el));
     new MultiSelect(editor);
     editor.setSession(doc);
 
-    var env = {};
-    env.document = doc;
-    env.editor = editor;
-    editor.resize();
-    Event.addListener(window, "resize", function() {
-        editor.resize();
-    });
-    el.env = env;
-    // Store env on editor such that it can be accessed later on from
-    // the returned object.
-    editor.env = env;
+    var env = {
+        document: doc,
+        editor: editor,
+        onResize: editor.resize.bind(editor)
+    };
+    event.addListener(window, "resize", env.onResize);
+    el.env = editor.env = env;
     return editor;
 };
 
+
+exports.createEditSession = function(text, mode) {
+    var doc = new EditSession(text, doc);
+    doc.setUndoManager(new UndoManager());
+    return doc;
+}
+exports.EditSession = EditSession;
+exports.UndoManager = UndoManager;
 });