Index: ssts-web/src/main/webapp/js/extCompOperationUtil.js
===================================================================
diff -u -r15795 -r16893
--- ssts-web/src/main/webapp/js/extCompOperationUtil.js	(.../extCompOperationUtil.js)	(revision 15795)
+++ ssts-web/src/main/webapp/js/extCompOperationUtil.js	(.../extCompOperationUtil.js)	(revision 16893)
@@ -4,18 +4,55 @@
 var extCompOperationUtil = (function () {
 
     var gOperation;
+
+    var motionObj;
+
+    //动作的常量
+    var constants = {
+        UP: 'up',
+        DOWN: 'down',
+        BOTTOM: 'bottom',
+        TOP: 'top'
+    };
     /**
      * extJS组件操作工具类工厂,用来返回需要创建的对象,以后扩展可以通过增加对应的组件操作对象,然后用这个工厂返回
      * @constructor
      */
     var ExtCompOperationUtilFactory = function () {
         this.getGridOperation = function () {
-            if (isUndefinedOrNullOrEmpty(gOperation)){
+            if (isUndefinedOrNullOrEmpty(gOperation)) {
                 gOperation = new GridOperation();
             }
             return gOperation;
+        };
+        this.getMotionObj = function () {
+            if (isUndefinedOrNullOrEmpty(motionObj)) {
+                motionObj = new MotionObj();
+            }
+            return motionObj;
         }
     }
+
+    //动作的类,用于获取上下最上最下的动作
+    var MotionObj = function () {
+        this.getConstant = function (name) {
+            return constants[name];
+        };
+        this.getUp = function () {
+            return constants.UP;
+        };
+        this.getDown = function () {
+            return constants.DOWN;
+        };
+        this.getBottom = function () {
+            return constants.BOTTOM;
+        };
+        this.getTop = function () {
+            return constants.TOP;
+        };
+    };
+
+
     //grid表单操作对象,支持每行上,下,置顶,置底操作
     var GridOperation = function () {
         /**
@@ -52,11 +89,11 @@
             var operation = {};
             // border是边界值判断(即最上和最低的位置)
             // pos是要插入的对应位置
-            if (motion == 'up') {
+            if (motion == motionObj.getUp()) {
                 operation.border = 0;
                 operation.pos = rowIndex - 1;
             }
-            else if (motion == 'down') {
+            else if (motion == motionObj.getDown()) {
                 operation.border = size - 1;
                 operation.pos = rowIndex + 1;
             }
@@ -71,8 +108,7 @@
             }
             return operation;
         }
-    }
-
+    };
     return new ExtCompOperationUtilFactory();
 
 })();
\ No newline at end of file