С onchange аналогично...
<!DOCTYPE html>
<html>
<head>
<meta http-equiv='Content-Type' content='text/html; charset=windows-1251' />
<!--
<script src='http://code.jquery.com/jquery-latest.js'></script>
<script src="https://code.angularjs.org/1.3.9/angular.min.js"></script>
<script src="https://code.angularjs.org/1.3.9/angular-route.js"></script>
<link rel='stylesheet type=text/css href=tmp.css' />
<link rel="stylesheet/less" type="text/css" href="style.less">
<script src="http://cdnjs.cloudflare.com/ajax/libs/less.js/2.5.0/less.min.js"></script>
-->
<style type='text/css'>
</style>
<script type='text/javascript'>
</script>
</head>
<body>
<input type="checkbox" class="fl_select" id="row1" checked="checked" />
<input type="checkbox" class="fl_select" id="row2" />
<script>
[].forEach.call(document.getElementsByClassName('fl_select'), function(e) {
e.onchange = function() {
alert('Было ' + (!this.checked ? 'вкл' : 'выкл'));
alert('Стало ' + (this.checked ? 'вкл' : 'выкл'));
}
})
</script>
</body>
</html>