to assign values dynamically

[su5]

I've two buttons to submit files to a text area.Both buttons have been given different conditions. Everytime i browse for a file using 1st button, I'm collecting it in a byte array .Then I'm finding it's size. This I'm storing it in a variable,say old_val. Next time i browse for a file using 2nd button, I'm storing the size in new_val.

Now, when I want to browse for a file again, I need the new_val to be assigned to old_val. Then the recently browsed file size to be assigned to new_val dynamically.

[doWhile]

Just assign the references to what you want. What did you try? Break the problem down, try something, and if it doesn't work post an SSCCE describing in detail the problem.