You can simply develop Ajax but only if you know your Javascript but in case you don't then there isAjax development tool from Helmi Technologies for you. This tool hides DHTML, Javascript and XML. The Helmi Open Source RIA platform comprises of a Virtual Browser, Client Framework, IDE and J2EE based back end Ajax Server Connect for creation of Ajax rich applications.

In this case you are using a virtual browser that hides the idiosyncrasies of individual browsers which would otherwise lead to compatibility issues. This means that you are using drag and drop techniques.

The virtual browser makes use of advanced memory caching behind the scenes so that objects are populated on the local screen on demand quickly. You can avail the Helmi Open Source RIA Platform under a dual license.