Bitcoin Bookmarklet

Updates the title tag with the current Bitcoin price index. Refreshes every minute.

HTML

<div class='wrapper'>
    <div class="btc">Loading...</div>
</div>

JavaScript

<script>
$(function(){
    function getBPI(){
        var jsonURL = 'https://api.coindesk.com/v1/bpi/currentprice/USD.json';
        $.getJSON( jsonURL,
        function(result){
            var rate = result.bpi.USD.rate;
            $('.btc').html(rate);
            document.title = 'BPI = ' + rate;
        }); 
    }
    var timer = setInterval(getBPI, 60000);
    getBPI();
});
</script>