$("img[title]").each(function(){
   this.after("<h2>" . this.attr(title) "</h2>");
});

$(this).after("<h2>" + $(this).attr('title') + "</h2>");

.attr("which one", "what to put there")

$("img").after("<h2>" + $(this).attr("title", "your new title") + "</h2>");

$("img[title]").after("<h2>" + $(this).attr("title") + "</h2>");

$("img[title]").each(function() {
		$(this).after("<h2>" + $(this).attr("title") + "</h2>");
	});