Index: ssts-web/src/main/webapp/ext/js/multiSelectCombo.js
===================================================================
diff -u -r33823 -r33924
--- ssts-web/src/main/webapp/ext/js/multiSelectCombo.js	(.../multiSelectCombo.js)	(revision 33823)
+++ ssts-web/src/main/webapp/ext/js/multiSelectCombo.js	(.../multiSelectCombo.js)	(revision 33924)
@@ -18,6 +18,7 @@
     multi: true,  
     separator: ',',  
     showRawValue:this.showRawValue ? this.showRawValue : true,
+    multiSelectIsClear:this.multiSelectIsClear ? this.multiSelectIsClear : true,
     initComponent: function ()   
     {  
         if (!this.tpl)   
@@ -156,13 +157,13 @@
             }
             
         }, this);  
-        this.setValue(va.join(this.separator));  
+        this.setValue(va.join(this.separator),true);  
         this.store.clearFilter();  
     },  
     onSelect: function (record, index)   
     {  
         if (this.fireEvent('beforeselect', this, record, index) !== false)   
-        {  
+        { 
             record.set(this.checkField, !record.get(this.checkField));
             var va = [];  
             var snapshot = this.store.snapshot || this.store.data;  
@@ -201,7 +202,7 @@
             this.fireEvent('select', this, record, index);  
         }  
     },  
-    setValue: function (v)   
+    setValue: function (v,clear)   
     {  
         if (v)   
         {  
@@ -239,7 +240,13 @@
         }  
         else   
         {  
-            this.clearValue();  
+            if(this.multiSelectIsClear){
+                this.clearValue();
+            }else {
+                if(clear){
+                    this.clearValue();  
+                }
+            }
         }  
     },  
     select: function (v)