[Nfb-web] java script, still cant subtract

[Bryan Schulz]

hi,

the html test file and java script source file are attached, remove .txt 
from the code file.
looking to give a reward for solution with explanation of what i can't see:

1st click on any checkbox checks the box and adds the driver total to the 
team total.
2nd click on the same checkbox/driver should subtract the value from the 
total but it doesn't.

thanks.
Bryan Schulz
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