Accessing a WCF Service Application from a web application

Hi,
I have a VS2K8 solution with a web app and a WCF Service App. In my web app I've added the service reference and can get to the service in the service app from code behind:
WebTest.ServiceReference1.Service1Client prox = new       WebTest.ServiceReference1.Service1Client("WSHttpBinding_IService1");
            fromStandAlone.InnerHtml = prox.GetData(9);
            prox.Close();
Can someone post a walkthrough on how to add an AJAX Enabled WCF service to the service app and how to access it from the web app?

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