Index: lams_common/src/flash/org/lamsfoundation/lams/common/util/ObjectUtils.as
===================================================================
diff -u -r05a958183c9ef82df743bea3d05cf3f5278188da -r36b26cb2463bd41a242e8e833c38266435f0604c
--- lams_common/src/flash/org/lamsfoundation/lams/common/util/ObjectUtils.as	(.../ObjectUtils.as)	(revision 05a958183c9ef82df743bea3d05cf3f5278188da)
+++ lams_common/src/flash/org/lamsfoundation/lams/common/util/ObjectUtils.as	(.../ObjectUtils.as)	(revision 36b26cb2463bd41a242e8e833c38266435f0604c)
@@ -1,4 +1,6 @@
-import org.lamsfoundation.lams.common.util.*
+import org.lamsfoundation.lams.common.*
+import org.lamsfoundation.lams.common.util.*
+import org.lamsfoundation.lams.common.comms.*
 
 /**  
 * Recursivly prints out all the values in an object
@@ -7,19 +9,90 @@
 */  
 class org.lamsfoundation.lams.common.util.ObjectUtils{
 	
+
 	
 	/**
 	* Recursively goes through and object and prints out property values
 	* @usage   printObject(_global);
 	* @param   target 
 	* @return  
 	*/
-	public static function printObject(target) {  
+	public static function printObject(target):String{  
 		for(var o in target){  
 			//trace('object:' + o  + ' value:' + target[o]);  
+			var str:String = "";
+			
 			Debugger.log(o  + ':' + target[o],Debugger.GEN,'printObject','org.lamsfoundation.lams.common.util.ObjectUtils');
+			str += o  + ':' + target[o];
 			printObject(target[o]);  
 		}  
-		return;  
-	} 
+		return str;  
+	}
+	
+	public static function deNull(obj:Object):Object{
+		Debugger.log('FOR:'+printObject(obj),Debugger.GEN,'deNull','org.lamsfoundation.lams.common.util.ObjectUtils');
+			//Removes null values in objects suitable for sending XML to the Java WDDX deserialiser
+		
+		if (obj instanceof Array) {
+			for (var i = 0; i<obj.length; i++) {
+				if(typeof (obj[i]) == "object"){
+					obj[i].deNull();
+				}else if (obj[i] == null || obj[i] == undefined){
+					obj[i] = replaceNullValues(obj[i]);
+				}
+			}
+		} else {
+			for (var i in obj) {
+				if(typeof (obj[i]) == "object"){
+					obj[i].deNull();
+				}else if (obj[i] == null || obj[i] == undefined){
+					obj[i] = replaceNullValues(obj[i]);
+				}
+			}
+		}
+		Debugger.log('Returning:'+printObject(obj),Debugger.GEN,'deNull','org.lamsfoundation.lams.common.util.ObjectUtils');
+		return obj;
+
+	}
+	
+	private static function replaceNullValues(val){
+		//Debugger.log('Communication.STRING_NULL_VALUE:'+Communication.STRING_NULL_VALUE,Debugger.GEN,'deNull','org.lamsfoundation.lams.common.util.ObjectUtils');
+		
+		_global.breakpoint();
+		switch(typeof(val)){
+			
+			case "string":
+				val = Config.STRING_NULL_VALUE;
+				return val;
+				break;
+			case "number":
+				val = Config.NUMERIC_NULL_VALUE;
+				return val;
+				break;
+			case "date":
+				val = Config.DATE_NULL_VALUE;
+				return val;
+				break;
+			case "boolean":
+				val = Config.BOOLEAN_NULL_VALUE;
+				return val;
+				break;
+			case "null":
+				val = Config.STRING_NULL_VALUE;
+				return val;
+				break;
+			case "undefined":
+				val = Config.STRING_NULL_VALUE;
+				return val;
+				break;
+			default:
+				val = Config.STRING_NULL_VALUE;
+				return val;
+			
+						
+		
+		}
+		
+	}
+	
 }