Index: lams_common/src/flash/org/lamsfoundation/lams/common/util/StringUtils.as
===================================================================
diff -u -r292fb996b7e13fe3eb1f4160b616421fb552c0ce -r46cfdcec8cfa46f5346db18c679f9fad8d49e38e
--- lams_common/src/flash/org/lamsfoundation/lams/common/util/StringUtils.as	(.../StringUtils.as)	(revision 292fb996b7e13fe3eb1f4160b616421fb552c0ce)
+++ lams_common/src/flash/org/lamsfoundation/lams/common/util/StringUtils.as	(.../StringUtils.as)	(revision 46cfdcec8cfa46f5346db18c679f9fad8d49e38e)
@@ -1,4 +1,5 @@
-import org.lamsfoundation.lams.common.util.*
+import org.lamsfoundation.lams.common.*
+import org.lamsfoundation.lams.common.util.*
 
 /**
 * Util methods for string manipulation
@@ -18,6 +19,30 @@
 	//Getters+Setters
 	function get className():String{
 		return _className;
+	}
+	
+	public static function cleanNull(str:String):String{
+		if(str == undefined){
+			return "";
+		}
+		if(str == null){
+			return "";
+		}
+		if(str == ""){
+			return "";
+		}
+		if(str == Config.STRING_NULL_VALUE){
+			return "";
+		}
+		if(str == "undefined"){
+			return "";
+		}
+		if(str == "null"){
+			return "";
+		}
+		
+		return str;
+		
 	}
 
     /**