How can I convert currency?

[webprogramer]

In The Name Of God

Hello ,Excuse me I want to write Convert Currency Web Page (with JavaScript) But I dont Know Manner(algorithm) example: 1dollar is 12260 rial(IRR) Thanks, GoodLuck&GoodBay

[Ingolme]

But currency values change every single day. You would need to rely on information from a bank. If you want a basic conversion, though, just do the operation.

function dollarsToRial(amount) {    return amount * 12260;}