repeat structure

[barryb at libero.it]

Hi gang,
I am trying to make a repeat structure that deals with an unknown number =
of images located along a given line.
The line is the diagonal of a currently selected group.
How can I define that line and does it have to be actually be drawn befor=
e referring to it?

My attempts so far include:
-----
the rect of the selectedObject --the group
put the points topLeft and rightBottom of it into tSightLine

repeat for each image within tSightLine
select it
   the rest of my rubbish ........
------
Of course, the second line throws an error (unquoted literal) but I canno=
t find where to put the quotes it is asking for.

For some reason the script Editor does not colour rightBottom red unless =
the words are separated but then the error is Expression: bad factor - so=
 I am leaving it black.

Any kind offers?
Barry