diff --git a/js/encoding/DataUtils.js b/js/encoding/DataUtils.js
index 92a4257..635cac7 100644
--- a/js/encoding/DataUtils.js
+++ b/js/encoding/DataUtils.js
@@ -97,10 +97,6 @@
 
      return unescape(output);
   };
-  
-  
-
-
 
 //byte [] 
 DataUtils.prototype.unsignedLongToByteArray= function( value) {
@@ -133,5 +129,29 @@
 }
 
 
+var utf8 = {}
+
+utf8.toByteArray = function(str) {
+    var byteArray = [];
+    for (var i = 0; i < str.length; i++)
+        if (str.charCodeAt(i) <= 0x7F)
+            byteArray.push(str.charCodeAt(i));
+        else {
+            var h = encodeURIComponent(str.charAt(i)).substr(1).split('%');
+            for (var j = 0; j < h.length; j++)
+                byteArray.push(parseInt(h[j], 16));
+        }
+    return byteArray;
+};
+
+utf8.parse = function(byteArray) {
+    var str = '';
+    for (var i = 0; i < byteArray.length; i++)
+        str +=  byteArray[i] <= 0x7F?
+                byteArray[i] === 0x25 ? "%25" : // %
+                String.fromCharCode(byteArray[i]) :
+                "%" + byteArray[i].toString(16).toUpperCase();
+    return decodeURIComponent(str);
+};