Because of the stateless nature of web connections, and the typical delays involved in returning information from the server, WebMenu implements both client-side events and server-side events. You can choose whether you would like to respond to client-side events, which must be implemented through JavaScript.
The ClientSideEvent object maintains a list of event handlers that are implemented on the client and called in response to events as they occur in the browser. Each event is a string that represents JavaScript function name. The named function must be implemented by the developer in JavaScript code.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