diff --git a/impl/pixley.js/demo/pixley.html b/impl/pixley.js/demo/pixley.html
index b59998e..ab2a3a0 100644
--- a/impl/pixley.js/demo/pixley.html
+++ b/impl/pixley.js/demo/pixley.html
@@ -46,7 +46,7 @@
 <button id="start">Start</button>
 <button id="stop">Stop</button>
 <button id="step">Step</button>
-<button onclick="c.wrapWith(document.getElementById('pixley-interpreter').innerHTML);">Wrap in Pixley Interpreter</button>
+<button id="wrap" onclick="c.wrapWith(document.getElementById('pixley-interpreter').innerHTML);">Wrap in Pixley Interpreter</button>
 <input id="speed" type="range" min="0" max="200" value="0" />
 <span id="status"></span>
 
@@ -234,7 +234,8 @@
   c.init({
     'status': document.getElementById('status'),
     'display': document.getElementById('display'),
-    'output': document.getElementById('output')
+    'output': document.getElementById('output'),
+    'wrapButton': document.getElementById('wrap')
   });
   c.connect({
     'start': 'start',
diff --git a/impl/pixley.js/src/pixley-controller.js b/impl/pixley.js/src/pixley-controller.js
index dc235d3..8cf9786 100644
--- a/impl/pixley.js/src/pixley-controller.js
+++ b/impl/pixley.js/src/pixley-controller.js
@@ -5,12 +5,14 @@
     alert('ERROR! ' + msg);
 };
 
+var proto = new yoob.Controller();
 function PixleyController() {
     this.init = function(cfg) {
         this.ast = undefined;
         this.status = cfg.status;
         this.display = cfg.display;
         this.output = cfg.output;
+        this.wrapButton = cfg.wrapButton;
         this.workerURL = cfg.workerURL || "../src/pixley-worker.js";
         this.loadWorker();
         this.running = false;
@@ -80,5 +82,16 @@
     this.wrapWith = function(lambdaText) {
         this.load('(' + lambdaText + ' (quote ' + depict(this.ast) + '))');
     };
+
+    // Awkward But Hopefully Successful Attempts at Calling Super Methods
+    this.click_edit = function(e) {
+        proto.click_edit.apply(this, [e]);
+        if (this.wrapButton) this.wrapButton.disabled = true;
+    };
+
+    this.click_load = function(e) {
+        proto.click_load.apply(this, [e]);
+        if (this.wrapButton) this.wrapButton.disabled = false;
+    };
 };
-PixleyController.prototype = new yoob.Controller();
+PixleyController.prototype = proto;