diff --git a/src/ui/editorui.js b/src/ui/editorui.js
index 75fa9e7..72dd97d 100644
--- a/src/ui/editorui.js
+++ b/src/ui/editorui.js
@@ -23,7 +23,7 @@
     k = btnCmds.length;
     while (k --) {
         cmd = btnCmds[k];
-        editorui[cmd] = function (cmd){
+        editorui[cmd] = (function (cmd){
             return function (editor, title){
                 title = title || defaultLabelMap[cmd.toLowerCase()] || '';
                 var ui = new editorui.Button({
@@ -45,7 +45,7 @@
                 });
                 return ui;
             };
-        }(cmd);
+        })(cmd);
     }
 
     editorui.Justify = function (editor, side, title){
@@ -102,7 +102,7 @@
     k = colorCmds.length;
     while (k --) {
         cmd = colorCmds[k];
-        editorui[cmd] = function (cmd){
+        editorui[cmd] = (function (cmd){
             return function (editor, title){
                 title = title || defaultLabelMap[cmd.toLowerCase()] || '';
                 var ui = new editorui.ColorButton({
@@ -131,7 +131,7 @@
                 });
                 return ui;
             };
-        }(cmd);
+        })(cmd);
     }
 
     //不需要确定取消按钮的dialog
@@ -139,7 +139,7 @@
     k = dialogNoButton.length;
     while(k --){
         cmd = dialogNoButton[k];
-        editorui[cmd] = function (cmd){
+        editorui[cmd] = (function (cmd){
             cmd = cmd.toLowerCase();
             return function (editor, iframeUrl, title){
                 iframeUrl = iframeUrl || defaultIframeUrlMap[cmd.toLowerCase()] || 'about:blank';
@@ -179,14 +179,14 @@
                 });
                 return ui;
             };
-        }(cmd);
+        })(cmd);
     }
 
     var dialogCmds = ['Link', 'Image', 'Map', 'Video'];
     k = dialogCmds.length;
     while (k --) {
         cmd = dialogCmds[k];
-        editorui[cmd] = function (cmd){
+        editorui[cmd] = (function (cmd){
             cmd = cmd.toLowerCase();
             return function (editor, iframeUrl, title){
                 iframeUrl = iframeUrl || defaultIframeUrlMap[cmd.toLowerCase()] || 'about:blank';
@@ -242,7 +242,7 @@
                 });
                 return ui;
             };
-        }(cmd);
+        })(cmd);
     }
 
     var FONT_MAP = {