var $j = jQuery.noConflict();

$j(document).ready(function() {
    $j('#footer').corner({tr: 0, tl: 0});
    
    $j('#navigation li a').corner({br: 0, bl: 0});
    
    var activeTab = $j('#main').attr('class');
    activeTab = '#' + activeTab;
    
    $j('#navigation li a' + activeTab).addClass('active');
});