function linkify(text){
	if (!text){
		return text;
	}
	text = text.replace(/>(https?\:\/\/)(\S+)(\w{2,4})(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?</gi,function(url){
		return '><a target="_blank" rel="nofollow" href="' + url.replace(/(<|>)/ig,'') +'">' + url.replace(/(<|>)/ig,'') + '</a><';
	});
	return text;
}