Cacher is the code snippet organizer for pro developers

/*
 * 元ネタ
 * 
 * EC2インスタンス料金月額日本円化
 * http://qiita.com/yuroyoro/items/08cded7662cf494d53f2
 * 
 * YQLを使ってYahoo! Financeから為替レートを取得する
 * http://qiita.com/masato/items/6f81bdc89f81a7b6cc3a 
 */
$.getJSON("https://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20yahoo.finance.xchange%20where%20pair%20in%20(%22USDJPY%22)&format=json&env=store%3A%2F%2Fdatatables.org%2Falltableswithkeys", function(yqlResult){
  var currentRate = yqlResult.query.results.rate.Rate;
  $("td.rate").each(function(i,e){
    var s=$(e).text();
    var v=s.match(/\$([0-9\.]+)/)[1]*24*30*currentRate;
    $(e).text(s+" | 月額 "+v.toFixed(0).toString().replace(/(\d)(?=(\d{3})+$)/g , '$1,')+"円");
  });
});