move frame if (ind3:)

I want to move a named frame if its on a certain position but it doesn’ work.
whats wrong?

tell application “InDesign CS”
tell active document
repeat with i from 1 to count of pages
set {oben, linkeseite, unten, rechteseite} to geometric bounds of rectangle “Feature” of page i
if oben = “113.931388888889” then
–set geometric bounds of rectangle “Feature” of page i to {(oben - 1), linkeseite, (unten - 1), rechteseite}
move rectangle “Feature” of page i by {0, -1}
end if
end repeat
end tell
end tell

the event-protocol sayss:
get geometric bounds of rectangle “Feature” of page 4 of active document
{113.931388888889, 158.059972222222, 200.811444444444, 285.940027777778}
end tell