$(function(){
    // set first and last child classes for bubble arrow positions
    $('#topics ul.horz').each(function(){ $('>li.l1:first', this).addClass('first') });
    $('#topics ul.horz').each(function(){ $('>li.l1:last', this).addClass('last') });
    // init bubbles
    $('#topics li.l1').bubble();
    $('#marquee-join').parent().click(function(){
        location.href = $('#marquee-join').attr('href');
        return false;
    });
});