Need help with codeing

Would someone look at the code in my program at http://www.ckdoublenecks.com/prorent.html . I need to make the “amt paid” column an input field and then make changes to other fields if the “amt paid” field is Not " " (?). Thanks in advance.

I’m really putting in the effort to learn this stuff but a couple of ?s:

  1. In my program, the apt# might actually be “J12, or A7” but if I define it as “Name” or use letters it blows up.
  2. in my alert I write the record number but can’t figure out how to relate that to the apt#

What does that mean?

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