diff --git a/lib/client/dom.js b/lib/client/dom.js
index bee62650..5e3c2194 100644
--- a/lib/client/dom.js
+++ b/lib/client/dom.js
@@ -1796,17 +1796,17 @@ var CloudCmd, Util, DOM, CloudFunc, Dialog;
              * @param element
              * @param pCenter
              */
-            this.scrollIntoViewIfNeeded  = function(element, pCenter) {
+            this.scrollIntoViewIfNeeded  = function(element, center) {
                 var ret = element && element.scrollIntoViewIfNeeded;
                 
                 /* for scroll as small as possible
                  * param should be false
                  */
                 if (arguments.length === 1)
-                    pCenter = false;
+                    center = false;
                 
                 if (ret)
-                    element.scrollIntoViewIfNeeded(pCenter);
+                    element.scrollIntoViewIfNeeded(center);
                 
                 return ret;
             };