navigating back from a transaction iview to main view

Hi All,

There is a requirement in which user is allowed to make changes in the r/3 system on action of a button and then these changes should be reflected back in the main view.

For this I have created a transaction iview and invoked this transaction iview on action of the button. This functionality is running fine on portal but I am not able to navigate back from the transaction iview to the main view.