$(function() {


    var mouseoverBannerItem = function() {
        $(this).find('.bannerImg').hide();


    };
    var mouseoutBannerItem = function() {
       $(this).find('.bannerImg').show();


    };


    var banner = $('.banner');
    banner.mouseover(mouseoverBannerItem);
    banner.mouseout(mouseoutBannerItem);

    var a = $('.banner a');
    a.focus(mouseoverBannerItem);
    a.blur(mouseoutBannerItem);

});