-- card: 130817 from stack: in
-- bmap block id: 99587
-- flags: 0000
-- background id: 4507
-- name: 


-- part 1 (button)
-- low flags: 00
-- high flags: 0001
-- rect: left=254 top=291 right=314 bottom=282
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: 


-- part 3 (button)
-- low flags: 00
-- high flags: 0001
-- rect: left=218 top=291 right=314 bottom=247
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: 


-- part 4 (button)
-- low flags: 00
-- high flags: 0000
-- rect: left=469 top=242 right=265 bottom=489
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: 
----- HyperTalk script -----
on mouseUp
  setCrossReference
  go to card id 79976
end mouseUp




-- part contents for background part 2
----- text -----
Variables

-- part contents for background part 1
----- text -----
Usually you store values in fields.  Variables are for storing values temporarily within a single message handler or globally to be used (or changed) by any script.  Variables can have any single-word name.  Variables don't use quotes.    

put 0 into subTotal
add field 3 to subTotal

You don't need to declare variables; just store into them on the fly.  Make a global variable by using the Global* command.


-- part contents for background part 43
----- text -----
267,189