Is there a way to add a button to a record that will cause a change to be made to the record when clicked?

Ok, so this is pretty awesome! I just applied the 2nd example to what I was going for and it works swimmingly! The one question I do have is that instead of having it show the record after the function is complete, you had mentioned you could have it show a report instead? What part of the URL address for the report is the part I would need to substitute in for the [Record ID#]?