ALV pop up with 3 fields

Hi All,

         I am displaying the ALV output using the CL_GUI_ALV_GRID, now on selecting a cell and when we click button(show attachment) on toolbar we have to display a pop up with 3 fields(able to click on a row).

Should we use the reuse* FM's or any option for using the same class for another popup.

Also when we click the row,I will be fetching a URL and how to open up a browser with the fetched URL.