hyperlink open new window

I have a link on my report which open new window. The code i have in advance properties of that field is :

="javascriptt:void(window.open('http://www.msn.com','_blank'))" (note: the extra "t" is intentionally added in the code, coz website block the keyword "java.....t")

It works great on testing server but it doesn't work on production server. Both testing and production servers run windows 2003 server and service pack 2 for reporting services.

Reports accessing form production server, when i click on report it opens up new window with address in address bar :

javascript:void(window.open('http://www.msn.com','_blank')) with "The page cannot be displayed" message. But if i open a new internet explorer window and copy past the same address in address bar then its open up www.msn.com. To test the production server behavior I created a test web page test.htm and added the java script to open new window, it works fine.

Any help would be much appreciated.

Ive had problems with this too!
I found it only works when you access the report via a URL such as
http://reportserver/reportserver?report
Rather than through the Report Manager:
http://reportserver/reports
Through the Report Manager I saw the same behaiviour "The page cannot be displayed" message but copying and pasting worked :S
Although Im not surew this is your problem as it works on your tst server, but not prod
Hope this helps
Al