The value is in milliseconds so choose something greater than 15000.
On a related note, we’ve read all the requests for Prototype support.
Ext is great framework for adding rich AJAX interactivity to your web application.
Suprotim is also the founder and primary contributor to Dev Curry, Dot Net Curry and SQLServer Curry.
He is the Editor of a Developer Magazine called DNC Magazine.
If you have a large script or slower machine, it may make sense to increase the timeout limit.
The timeout value store within following registry keys (depending on if your are using Express or the full product).