How to do Javascript access a local database in txt format

I am newbie working on a 100% js prototype. It consist of 3 docs: an html page full of xml tags, a small dictionary in a text file format, and a js file with jquery.

The js needs to parse the xml tags (no prob开发者_运维知识库lem here) and look into the mini-dictionary list for available translations.

Which is the best way to implement the mini-dictionary list. (No more than 50.000 records). Is there a way to load the list into a memory database and access it from js? Which is the usual path to take in this case? What is the simplest and machine-independent way to do this?

Any directions as to where should I research are greatly appreciated.

I would suggest encoding mini-dictionary with JSON data format, and then using AJAX to get that file and parse it. But then you are risking someone will just copy whole dictionary and steal your work.

That is, if you are not using server side language, like PHP. If you are using it, then just store everything into database and request just specific words with AJAX.