$(document).ready(function() {

    $('.a-y-d').hide();

    $('.a-p-h').click(function() {
        var year = $(this).attr('id').replace('a-','');
        year = year.replace('-h','');
        year = "a-"+year+"-div";
        if ($('#'+year).css('display') == 'none')
            $('#'+year).slideDown("fast");
        else
            $('#'+year).slideUp("fast");
    });

});