Mint.com running total bookmarklet

Drag this link into your bookmarks bar, and click it when you're looking at your transactions on mint.com!

Annotated code below.

1. // Inject jQuery
2. (function() {
3.   var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
4.   ga.src = ('https:' == document.location.protocol ? 'https://' : 'http://') +'ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js';
5.   var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
6. })();
7.  
8. // Poll until jQuery has loaded
9. var interval = setInterval(function(){
10.   if (typeof(jQuery) !== 'undefined'){
11.     var total = 0;
12.  
13.     // Target the transaction list table and do some fancy string manipulation
14.     $('#transaction-list-body').find('tr').each(function(){
15.       total += parseFloat($(this).find('.money').text().replace('$','').replace(',','').replace('–','-'), 10);
16.       $(this).append($('<td />').text(total.toFixed(2)));
17.     });
18.     clearInterval(interval);
19.   }
20. }, 100);