Event.observe(window, 'load', function() {

    $$('#HolidayMenu li').each(function(tabItem, index) {

        Event.observe(tabItem, 'click', holidayTabClick.bindAsEventListener(this, tabItem, index));
        tabItem.onclick = function() { return false; };

    });

    hideTabs(0);
    
});

holidayTabClick = function(e, tabItem, index) {

    hideTabs(index);
    $('HolidayTab_' + (index + 1)).show();
    tabItem.addClassName('Selected');

}

hideTabs = function(indexNoHide) {

    $$('#HolidayMenu li').each(function(tabItem, index) {
        if (index != indexNoHide) {
            tabItem.removeClassName('Selected');
        }
    });

    $$('.holidayTab').each(function(tabBody, index) {

        if (index != indexNoHide) {
            tabBody.hide();
        }
    });
}