http://btc-price.orgJS + PHP script that will automatically show the value of any goods or services on your site in Bitcoin, originally listed in euros, Fed dollar or yuan.
Recalculation occurs at the rate of exchanges BTC-E, Bitstamp, or Huobi, by pressing the "Convert to Bitcoin".
Data are updated automatically, specify the search interval, and you will not survive that course could change dramatically in the time when you set prices.