Coursera total minutes / section

gistfile1.js

$('.item_section_list').each(function(i, section) {
	var saw = 0;
	var total = 0;
	for (var i = 0; i < section.childNodes.length; i++) {
		var row = section.childNodes[i];
		console.log(row);
		var viewed = row.classList.contains('viewed');
		var minutes = parseInt(row.firstChild.text.match(/\((\d+) min\)/)[1], 10);
		if (viewed) {
			saw += minutes;
		}
		total += minutes;
	}
	var section_title = section.previousElementSibling.firstElementChild;
	section_title.textContent += ' (' + saw + ' / ' + total + ' min)';
});