$(document).ready(function() {
    var footerULWidth = $("#pagefooter ul").width();
    var footerWidth = $("#pagefooter").width();
    var marginLeft = (footerWidth - footerULWidth) / 2;
    $("#pagefooter ul").css("margin-left", marginLeft);

    $("div#maincol").append("<div class='maincol-bottom'>&#160;</div>");
});