Every business day the Central Bank of Russia fixes rates of certain foreign currencies to Russian ruble (currency code - RUR).
List of currencies: Australian dollar, Azerbaijani manat, Armenian dram, Belarusian ruble, Bulgarian lev, Brazilian real, Hungarian forint, Danish krone, Euro, Indian rupee, Kazakh tenge, Canadian [...]
The captcha iself helps to prevent sending forms by robots.
Our component (com_idcaptcha) and plugin (plg_idcaptcha) work together. Component com_idcaptcha generates a picture and places its encrypted code into the session variable. Plugin plg_idcaptcha is designed to integrate the captcha into all forms using the class JForm and provide a verification of the captcha.