[Web4lib] library calculator/java question

[Richard James]

I'm trying to install a "library value calculator" on my own site, with next
to no knowledge of java. Any guidance gladly accepted.
I carefully cribbed and cleaned up source code from the standard calculator
as provided by Maine, but I'm pretty sure I must be missing something
important because none of the total fields will calculate at all:

http://lib.de.us/libraryvalue.html

grateful for any help!

Richard James