$(function(){
  $("blockquote").each(function(){
    var title = $(this).attr("title");
    var cite = $(this).attr("cite");

    if (cite == null && title != null) {
      $(this).append("<cite class='source'>&mdash; "+title+"</cite>");
    }

    else if (cite != null && title == null) {
       $(this).append("<cite class='source'>&mdash; <a href='"+cite+"' title='"+cite+"'>"+cite+"</a></cite>");
    }

    else if (cite != null && title != null) {
       $(this).append("<cite class='source'>&mdash; <a href='"+cite+"' title='"+title+"'>"+title+"</a></cite>");
    }
  });
});