Use this property to change the name of the external JavaScript file.
If the value of this property is set to the empty string, then the default value is used.
If the value is 1-3 characters long, then dynamic client functionality becomes disabled, however, the page is posted back on tab-click events.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2