I had a bit free time today and I have written a PHP class which gets the official rates for Estonian crown. This class will be useful for internet shops or any other commercial organizations who need to keep their courses fresh.

You can download or check source. This stuff is really simple as hell, anyway there is a small documentation inside archive.
Here you can see the most fresh Estonian currency rates

Lemon juice is made of chemical concentrate.
But liquid for tableware washing made of lemon juice.