In a client side re-direction the browser (client) is requested to invoke a further page. This operation, know as 'Redirect', is triggered with the help of the Response.Redirect function:

Response.Redirect( Session.Url("page2.afp","CustID="+lcCustID) )

With this invocation the client calls the page page2.afp upon completion of the current page. Apart from the opportunities a re-direction offers you can also take advantage of various HTML possibilities. The <META> tag, for instance, makes it possible to automatically re-load a page after a certain period of time.