diff --git a/doc/site/js/main.js b/doc/site/js/main.js
index ed9fbff4..7e564fbf 100644
--- a/doc/site/js/main.js
+++ b/doc/site/js/main.js
@@ -6,10 +6,13 @@ $(function() {
     editor.container.style.opacity = "";
     embedded_editor = ace.edit("embedded_ace_code");
     embedded_editor.container.style.opacity = "";
-    editor.session.setMode("ace/mode/javascript");
-    editor.session.setMode("ace/mode/javascript");
+    editor.session.setMode("ace/mode/javascript");    
     embedded_editor.session.setMode("ace/mode/html");
     
+    editor.setOptions({
+        maxLines: 30
+    })
+    
     ace.config.loadModule("ace/ext/emmet", function() {
         ace.require("ace/lib/net").loadScript("http://nightwing.github.io/emmet-core/emmet.js", function() {
             embedded_editor.setOption("enableEmmet", true);
diff --git a/index.html b/index.html
index 75504169..f61b619a 100644
--- a/index.html
+++ b/index.html
@@ -80,7 +80,7 @@ function add(x, y) {
 
 var addResult = add(3, 2);
 console.log(addResult);
-                                </div>
+</div>
                             <p id="embed_link"><a href="#nav=embedding">Learn how to embed this in your own site</a></p>
                             <p class="highlight_note">Looking for a more full-featured demo? Check out the
                                 <a href="build/kitchen-sink.html" target="_blank">kitchen sink</a>.
diff --git a/lib/ace/autocomplete.js b/lib/ace/autocomplete.js
index 8f321800..2500bd9a 100644
--- a/lib/ace/autocomplete.js
+++ b/lib/ace/autocomplete.js
@@ -90,7 +90,7 @@ var Autocomplete = function() {
         this.editor.keyBinding.removeKeyboardHandler(this.keyboardHandler);
         this.editor.off("changeSelection", this.changeListener);
         this.editor.off("blur", this.changeListener);
-        this.editor.off("mousedown", this.changeListener);
+        this.editor.off("mousedown", this.mousedownListener);
         this.editor.off("mousewheel", this.mousewheelListener);
         this.changeTimer.cancel();
         
diff --git a/lib/ace/config.js b/lib/ace/config.js
index eb3de049..703b1c7f 100644
--- a/lib/ace/config.js
+++ b/lib/ace/config.js
@@ -217,8 +217,11 @@ var optionsProvider = {
         if (this["$" + name] === value)
             return;
         var opt = this.$options[name];
-        if (!opt)
+        if (!opt) {
+            if (typeof console != "undefined" && console.error)
+                console.error('misspelled option "' + name + '"');
             return undefined;
+        }
         if (opt.forwardTo)
             return this[opt.forwardTo] && this[opt.forwardTo].setOption(name, value);
 
@@ -229,8 +232,11 @@ var optionsProvider = {
     },
     getOption: function(name) {
         var opt = this.$options[name];
-        if (!opt)
+        if (!opt) {
+            if (typeof console != "undefined" && console.error)
+                console.error('misspelled option "' + name + '"');
             return undefined;
+        }
         if (opt.forwardTo)
             return this[opt.forwardTo] && this[opt.forwardTo].getOption(name);
         return opt && opt.get ? opt.get.call(this) : this["$" + name];