for (var i in commands) { console.log(i); }

var s = $('<span />').text('Hello'),
    p = $('<p />').append(s);
s.after(' world');

console.log(p);

var ul = $('<ul />').addClass('gm_room_list');
          	for (var i in commands) {
              (function (current) {
                $('<a />').click(function () {
                  $('#input').val('/' + current).focus();
                  return false;
                }).attr('href', '#')
                  .text(current)
                  .wrap('<li />')
                  .parent()
                  .appendTo(ul);
              })(i);
            }
            ul = $(ul).before("<span>Unknown command, try again, or use // to escape commands.</span>");

$('.message').hover(function(){
    $(this).prevUntil('.message').hide();
}, function(){
    $(this).prevUntil('.message').show();
});

TypeError: Object function (a,b){return new c.fn.init(a,b)} has no method 'reverseSmiley'