Index: lams_common/src/flash/org/lamsfoundation/lams/common/util/StringUtils.as
===================================================================
diff -u -r3d25b955fe079be3d39875ff319b0495242a3824 -r269b8f86247c1dab751c54abeece498e68a827e8
--- lams_common/src/flash/org/lamsfoundation/lams/common/util/StringUtils.as	(.../StringUtils.as)	(revision 3d25b955fe079be3d39875ff319b0495242a3824)
+++ lams_common/src/flash/org/lamsfoundation/lams/common/util/StringUtils.as	(.../StringUtils.as)	(revision 269b8f86247c1dab751c54abeece498e68a827e8)
@@ -195,6 +195,57 @@
         uid = year_str + month_str + day_str + hour_str + minute_str + second_str + milliSecond_str + '-'+ id;
        
         return uid;
-    } 
+    } 
+	
+	
+	/**
+	 * Checks to see if the value passed in is null, undefined or a blank string
+	 * @usage   
+	 * @param   v 
+	 * @return  
+	 */
+	public static function isEmpty(v):Boolean{
+		if(v == undefined || v== null || v==""){
+			return true;
+		}else{
+			return false;
+		}
+	}
+	
+	/**
+	 * Checks to see if the value passed in is any of the null values defined in Config.
+	 * @usage   
+	 * @param   v 
+	 * @return  boolean true if null
+	 */
+	public static function isWDDXNull(v):Boolean{
+		if(v==Config.STRING_NULL_VALUE){
+			return true;
+		}
+		if(v==Config.NUMERIC_NULL_VALUE){
+			return true;
+		}
+		if(v==Config.STRING_NULL_VALUE){
+			return true;
+		}
+		if(v==Config.DATE_NULL_VALUE){
+			return true;
+		}
+		if(v==Config.BOOLEAN_NULL_VALUE){
+			return true;
+		}
+		return false;
+	}
+	
+	public static function isNull(v):Boolean{
+		if(isEmpty(v)){
+			return true;
+		}else if(isWDDXNull(v)){
+			return true;
+		}else{
+			return false;
+		}
+		
+	}
     
 }
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