I partially added Dan's suggestion of allowing N rolls of a particular hoard type. You can now generate from 1-100 results for the same treasure type entry. Additionally, I tweaked the gem & jewel output based on djeryv's suggestions to include total value, gem types, and jewelry type. The latter two are a mixture from the 1st and 2nd DMG's tweaked to fit the LL values.
As for exporting the data, there are a couple of possibilities. Text output would be pretty easy to do. Instead of calling the ajax foo, I could just call another script that dumps raw text. Downside is that I didn't think of that to begin with so I'll have to rework a fair number of output elements to strip the html hard-coding I put in place. Alternatively, I could do a different variant to just allow randomized treasure booklets in PDF format. The booklet would basically be a 22 section PDF with a list of of N treasure types per category. Cross them off as you use them, then regenerate another booklet when you need one. The PDF creation interfaces look reasonably easy to do but I've never tried it.
I'm leaning toward the PDF idea. If it works, its printable in a much better fashion than raw text. Text output, on the other hand, is much easier to copy/paste quickly but the current generator allows that already.
Thoughts?