This is for a site that displays the exchange rate among two currencies. The exchange rates are supplied by two variables. Currency AA$ to BB$ is supplied by variable $a Currency BB$ to AA$ is supplied by valiable $b There should be two calculators next to each other (see image). Each calculator displays one text entry box where users can enter the first currency. The result is instantly calculated and displayed below. For each additional number the user enters, the result is updated. Numbers are formatted as follows: xxx.xxx,xx (European formatting) Non-numerical characters are not accepted, except one period or comma (which are treated equally as a comma, i.e. separator between ones and tenths). Please quote your price and timeframe either here or by PM. This is what it should look like: