adding button to last column which redirects to new page posting the row id

radiodesign

Hi, I wonder if someone can help not sure if this has already been posted somewhere but since changing from the client side processing to server side I have no idea how to add a button which re-directs, Previously I just had a while loop with one of the cells being the edit button and the value was my row id and when clicked would store in a session variable. But since I no longer use $row['id'] and just have the table headers I don't know how I retrieve the ID. Im not great with javascript so if someone can help me I would be grateful. Thanks