Fix references to $ to be $D.

webkit_canvas_bug.html

@@ -69,7 +69,7 @@
 
         function message(str) {
             console.log(str);
-            var cell = $('messages');
+            var cell = $D('messages');
             cell.innerHTML += str + "\n";
             cell.scrollTop = cell.scrollHeight;
         }
@@ -82,17 +82,17 @@
                     test_state = 'failed';
                     break;
                 case 'loaded':
-                    $('startButton').disabled = false;
+                    $D('startButton').disabled = false;
                     break;
             }
             if (typeof msg !== 'undefined') {
-                $('VNC_status').innerHTML = msg;
+                $D('VNC_status').innerHTML = msg;
             }
         }
 
         function start() {
-            $('startButton').value = "Running";
-            $('startButton').disabled = true;
+            $D('startButton').value = "Running";
+            $D('startButton').disabled = true;
 
             iterations = 1;
             iteration = 0;
@@ -112,8 +112,8 @@
             iter_time = parseInt(total_time / iterations, 10);
             message("Rendering took " + total_time + "ms");
             rfb.get_canvas().stop();   // Shut-off event interception
-            $('startButton').disabled = false;
-            $('startButton').value = "Start";
+            $D('startButton').disabled = false;
+            $D('startButton').value = "Start";
 
         }