<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'
src='http://code.jquery.com/jquery-1.5.2.js'></script>
<script type='text/javascript'>
$(window).load(function(){
var div = $('<div style="-webkit-column-count: 3; -moz-column-count: 3;" />');
var columns = div.css('-webkit-column-count') || div.css('-moz-column-count') || 'nope';
$('#result').text(columns);
});
</script>
</head>
<body>
<p>
Your browser understands CSS3 columns: <span id="result">?</span>
</p>
</body>
</html>