How to use retail version of Asp.Net JavaScript Libraries in debug mode?

On some occasions you might want to use retail versions of Asp.Net JavaScript libraries while debugging your code. (For starters, when in debug mode in Visual Studio, you are not using the release versions, instead you are using debug versions of the libraries). To achieve this all you have do is set the ScriptMode property of the ScriptManager control to “Release“.  This will allow the release Asp.Net Ajax library to be used in debug mode.

<asp:ScriptManager ScriptMode="Release" />