Some small corrections

Author: pandamicro

Diff for: cocos2d/core/sprites/CCSpriteCanvasRenderCmd.js

@@ -149,7 +149,7 @@
         w = locWidth * scaleX;
         h = locHeight * scaleY;
 
-        if (texture) {
+        if (texture && texture._htmlElementObj) {
             image = texture._htmlElementObj;
             if (texture._pattern !== "") {
                 wrapper.setFillStyle(context.createPattern(image, texture._pattern));

Diff for: cocos2d/core/utils/CCProfiler.js

@@ -124,13 +124,17 @@ cc.profiler = (function () {
                 this.init();
             }
 
-            cc.container.appendChild(_fps);
+            if (_fps.parentElement === null) {
+                cc.container.appendChild(_fps);
+            }
             _showFPS = true;
         },
 
         hideStats: function () {
             _showFPS = false;
-            cc.container.removeChild(_fps);
+            if (_fps.parentElement === cc.container) {
+                cc.container.removeChild(_fps);
+            }
         },
 
         init: function () {