$(document).ready(function() {
	$('#review').one("focus", function() {
	$('#write').after('<div id="preview-box"><h3>Live Review Preview</h3><div id="live-preview"></div></div>');
});

var $comment = ''; // that's two single quotation-marks at the end
$('#review').keyup(function() {
	$comment = $(this).val();
	$comment = $comment.replace(/\n/g, "<br />")
		.replace(/\n\n+/g, '<br /><br />')
		.replace('[b]', '<strong>')
		.replace('[/b]', '</strong>')
		.replace('[i]', '<em>')
		.replace('[/i]', '</em>')
		.replace('[s]', '<del>')
		.replace('[/s]', '</del>')
		.replace('[code]', '<code>')
		.replace('[/code]', '</code>')
		.replace('[quote]', '<blockquote>')
		.replace('[/quote]', '</blockquote>')
	;
	$('#live-preview').html( $comment );
	});
});