Unresponsive Script

I am using GWT to develop market watch for my project testing in the Firefox browser.
I am using Market watch with 60 securities in one grid.
So I am getting the following error while getting the feeds from the LS server.

"A script on this page may be busy, or it may have stopped responding. You can stop the script now, or you can continue to see if the script will complete".
With two options 1, Stop Script, 2, Cancel
If I click Stop script the feeds are not updating. If I click cancel I am not getting anything other than busy state.

But If I use only 15 securities to show then the page is working fine.

Please help me to find out the solution.

Regards,
Karthik C

usually browsers block javascript execution if a "thread" spends too much time executing.
you should identify where time is spent in your application through profiling to find out if there is something in the application that can be optimized.

To profile your application you can use firebug, it has a profile button on the console tab: click it to start profiling and click it again to stop, then check the results.

HTH