What is the idea behind unobtrusive JavaScript? What makes JavaScript unobtrusive? Does it mean removing any onlclick events in your markup and handling those click events with an approach as provided with jQuery? With jQuery its very (extremely) easy to traverse between DOM elements and its even easier associating events to elements and executing them.

I havent been doing a lot of JavaScript recently but you cannot really avoid it, but you can also not build an entire website with JavaScript and HTTPRequests alone (not search engine friendly), but you can also not rely entirely on server side code to do all the magic for you.

The other issue that has been bugging me of late is the idea of creating a session-less shopping basket, a shopping basket that uses a combination of web services and traditional classes. Within the .NET environment the only reason you might need to use sessions is to store DataTables or DataSets, but the question is how expensive is that on server resources. Would I be able to create the same session-based application with web services and traditional classes? After all you are adding web references to your web applications, and those web references all contain class declarations.