jQuery(document).ready(function($) {
        $body = (window.opera) ? (document.compatMode == "CSS1Compat" ? $('html') : $('body')) : $('html,body');
        //shangxia huadong
        var s = $('#shangxia').offset().top;
        $(window).scroll(function() {
            $("#shangxia").animate({
                top: $(window).scrollTop() + s + "px"
            },
            {
                queue: true,
                duration: 500
            })
        });
        $('#shang').live('click',function(){
            scroll('#page');
        });
        $('#xia').live('click',function(){
            scroll('#footer');
        });
        $('#comt').live('click',function(){
            scroll('#comments');
        });
        //shangxia huangdong end

});