$(function () {
    var count = $("#slideshow > div").length
    $('#slideshow').cycle({
        fx: 'scrollVert',
        timeout: 0,
        prev: '#prev',
        next: '#next',
        pager: '#nav',
        pagerAnchorBuilder: pagerFactory
    });

    function pagerFactory(idx, slide) {
        var value = idx > count ? ' style="display:none"' : '';
        return '<li ' + value + '><a class="txtnumCls" href="#">' + (idx + 1) + '</a></li>';
    };

    $('.txtnumCls').html("&nbsp;");
});