$(document).on('input keyup', 'textarea[maxlength]', function(e) {
	$textarea = $(this);
	var maxlength = $textarea.attr('maxlength');
	if (!!maxlength) {
		var text = $textarea.val();
		if (text.length > maxlength) {
			$textarea.val(text.substring(0, maxlength));
			e.preventDefault();
		}
	}
});