Enable java script debugger in visual studio 2008....

Step for enable java script debugger in visual studio:

1. Set IE as default web browser
2. Unchecked disable script debugger from IE

Set IE as default web browser

Tools->Internet Option->Programs->Make default

Unchecked disable script debugger from IE

Tools->Internet Option->advanced

Now restart your visual studio 2008 set a break point in your script file you will get a desired output...