Thank you everyone for the help.

Below are steps i have followed to have successful output.

1. Created a pageload rule in DTM to use the at.js.

2. Created a web project in eclipse and  used above mentioned code  in this thread.

3. Started the web project and i the integration was successful.

4. Form target we were able to fetch the content for the mbox name we have defined and showed the content on the page.

Thanks,

Tulasi.