The Software Testing Automation Framework (STAF) is a framework designed to improve the level of reuse and automation in test cases and test environments. The goal of STAF is to provide a complete end-to-end automation solution for testers.
SmartTester is a Java based test automation framework, where you can remotely manage and run tests. Furthermore the framework returns a result file. To use a test against different DUTs you can create multiple datasets with arguments.
SimpleWebTest is an web auto test framework, which can simplify your coding auto test script. It supplies capturing web page element tool called UI Map.
You can implement auto test script for ajax web site agilely, maintenance just spend little time.