My javascript file references MicrosoftAjax.js to register the namespace and classes using registerNamespace and registerClass functions like this :

    //Registering the namespace 'Root' using MS Ajax Framework
  if (typeof (Root) == 'undefined') {
    Type.registerNamespace('Root');
 }

The Root namespace is referenced at multiple places in the javascript file like :

Root.__ServiceInstances = new Object();

Root.StringDictionary = function() {
    this._arrDictionary = new Object();
}

Root.StringDictionary.registerClass('Root.StringDictionary', null);

Root.KeyedItemDictionary = function() {
    this._arrDictionary = new Object();
}

//Registering the class
Root.KeyedItemDictionary.registerClass('Root.KeyedItemDictionary', null);

I do not want to use Ajax longer in my project. When I removed the reference to MicrosoftAjjax.js from my javascript file, I recieved 'Type is not defined' error.

Is there any workaround I can do in javascript file itself to register the namespaces and classes without Microsoft Ajax framework.

Please know that I am primarily a .NET dev and a beginner in javascript. Thanks in advance