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diff --git a/frontend/gamma/js/Clipperz/KeyValueObjectStore.js b/frontend/gamma/js/Clipperz/KeyValueObjectStore.js
new file mode 100644
index 0000000..04beb85
--- a/dev/null
+++ b/frontend/gamma/js/Clipperz/KeyValueObjectStore.js
@@ -0,0 +1,176 @@
+/*
+
+Copyright 2008-2011 Clipperz Srl
+
+This file is part of Clipperz's Javascript Crypto Library.
+Javascript Crypto Library provides web developers with an extensive
+and efficient set of cryptographic functions. The library aims to
+obtain maximum execution speed while preserving modularity and
+reusability.
+For further information about its features and functionalities please
+refer to http://www.clipperz.com
+
+* Javascript Crypto Library is free software: you can redistribute
+  it and/or modify it under the terms of the GNU Affero General Public
+  License as published by the Free Software Foundation, either version
+  3 of the License, or (at your option) any later version.
+
+* Javascript Crypto Library is distributed in the hope that it will
+  be useful, but WITHOUT ANY WARRANTY; without even the implied
+  warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Affero General Public License for more details.
+
+* You should have received a copy of the GNU Affero General Public
+  License along with Javascript Crypto Library.  If not, see
+  <http://www.gnu.org/licenses/>.
+
+*/
+
+if (typeof(Clipperz) == 'undefined') { Clipperz = {}; }
+
+//#############################################################################
+
+Clipperz.KeyValueObjectStore = function(args) {
+        args = args || {};
+
+        //this._name = args['name'] || "unnamed KeyValueObjectStore";
+        this._values = args['values'] || {};
+        //this._referenceObjectStore = null;
+//console.log("new KeyValueObjectStore", args, this._values);
+
+        return this;
+}
+
+Clipperz.KeyValueObjectStore.prototype = MochiKit.Base.update(null, {
+
+        'values': function() {
+                return this._values;
+        },
+
+        'initWithValues': function (someValues) {
+                this._values = Clipperz.Base.deepClone(someValues) || {};
+                return this;
+        },
+
+        'setValues': function (someValues) {
+//console.log("KeyValueObjectStore.setValues", someValues);
+                this._values = someValues;
+                return this;
+        },
+
+        //'initWithObjectStore': function (anObjectStore) {
+        //      this._referenceObjectStore = anObjectStore;
+        //},
+
+        'removeAllData': function () {
+                this._values = {};
+        },
+
+        //-------------------------------------------------------------------------
+
+        'getValue': function(aKeyPath) {
+                var result;
+                var keys;
+                var i,c;
+
+                result = this.values();
+
+                keys = (aKeyPath + '').split('.');
+                c = keys.length;
+                i = 0;
+
+                while ((i<c) && (result != null)) {
+                        if (typeof result[keys[i]] != 'undefined') {
+                                result = result[keys[i]];
+                        } else {
+                                result = null;
+                        }
+                        
+                        i++;
+                }
+                
+                return result;
+        },
+
+        //-------------------------------------------------------------------------
+
+        'setValue': function(aKeyPath, aValue) {
+                var targetObject;
+                var keys;
+                var i,c;
+
+//console.log(">>> KeyValueObjectStore.setValue", this, this.values(), aKeyPath, aValue);
+                targetObject = this.values();
+                keys = (aKeyPath + '').split('.');
+                c = keys.length - 1;
+                for (i=0; i<c; i++) {
+//console.log("--- KeyValueObjectStore.setValue", i, targetObject, keys[i]);
+                        if (typeof targetObject[keys[i]] == 'undefined') {
+                                targetObject[keys[i]] = {}
+                        }
+
+                        targetObject = targetObject[keys[i]];
+                }
+
+                targetObject[keys[c]] = aValue;
+//console.log("<<< KeyValueObjectStore.setValue");
+                
+                return aValue;
+        },
+
+        //-------------------------------------------------------------------------
+
+        'removeValue': function (aKeyPath) {
+        //      this.setValue(aKeyPath, null);
+
+                var targetObject;
+                var keys;
+                var i,c;
+                
+                targetObject = this.values();
+                keys = ('' + aKeyPath).split('.');
+                c = keys.length - 1;
+                for (i=0; i<c; i++) {
+                        if (typeof targetObject[keys[i]] == 'undefined') {
+                                targetObject[keys[i]] = {}
+                        }
+
+                        targetObject = targetObject[keys[i]];
+                }
+
+                delete targetObject[keys[c]];
+        },
+
+        //-------------------------------------------------------------------------
+
+        'deferredGetOrSet': function(aKeyPath, aGetterFunction) {
+                var deferredResult;
+                
+                if (this.getValue(aKeyPath) != null) {
+                        deferredResult = MochiKit.Async.succeed(this.getValue(aKeyPath));
+                } else {
+                        deferredResult = new Clipperz.Async.Deferred("KeyValueObjectStore.deferredGetOrSet [" + aKeyPath + "]", {trace:false});
+
+                        deferredResult.addCallback(aGetterFunction);
+                        deferredResult.addMethod(this, 'setValue', aKeyPath);
+                        deferredResult.callback();
+                }
+                
+                return deferredResult;
+        },
+
+        //-------------------------------------------------------------------------
+
+        'isEmpty': function () {
+                return (MochiKit.Base.keys(this.values()).length == 0)
+        },
+
+        //-------------------------------------------------------------------------
+/*
+        'dumpData': function () {
+                return Clipperz.Base.serializeJSON(this.values());
+        },
+*/
+        //-------------------------------------------------------------------------
+        __syntaxFix__: "syntax fix"
+});