JditoFilter constructor fix

process/JditoFilter_lib/process.js

@@ -15,7 +15,8 @@ import("system.datetime");
 function JditoFilter (pFilter, pFieldOrder) 
 {
     this._fieldInfos = {};
-    this.fieldOrder(pFieldOrder);
+    if (pFieldOrder)
+        this.fieldOrder(pFieldOrder);
     this._filter = null;
     this.filter(pFilter);
     this._ignoreCase = JditoFilterUtils.isUserIgnoreCase();