Border on selected rectangle?

Question

I have a document that will have allot of rectangles in it. I would like to only select one, and put a border on that. I can get the script to work the border/stroke.
but I can't figure out how to get it to use the rectangleI have selected.
I've tried active and selected but they give me an error.
Is there a way to do this
tell application "Adobe InDesign CS5"
          tell rectangle 1 of document 1
                    set stroke color to "Black"
                    set stroke tint to 100
                    set stroke weight to 1
                    set stroke alignment to outside alignment
          end tell
end tell

Answer 1

The document selection can return you a list or nothing so you want to do something like…
tell application "Adobe InDesign CS5"
activate
tell document 1
if (count of every item of selection) = 1 then
if (class of first item of selection) = rectangle then
tell selection
set stroke color to "Black"
set stroke tint to 100
set stroke weight to 1
set stroke alignment to outside alignment
end tell
end if
end if
end tell
end tell