var Fpic = $(".banner li");
        var Lpic = Fpic.find("img");
      //图片自适应浏览器窗口大小
        var winW, winH;
        function findSize() {
            if (window.innerHeight && window.innerWidth) {
                winW = window.innerWidth;
                winH = window.innerHeight;
            }
            if (document.documentElement.clientHeight && document.documentElement.clientWidth) {
                winW = document.documentElement.clientWidth;
                winH = document.documentElement.clientHeight;
            }
            if (document.body.clientHeight && document.body.clientWidth) {
                winW = document.body.clientWidth;
                winH = document.body.clientHeight;
            }
            Lpic.css({ "width": winW, "height": winH });
        }
        window.onload = findSize;
        window.onresize = window_resize;
        var resizeTimeoutId;
        function window_resize(e) {
            window.clearTimeout(resizeTimeoutId);
            resizeTimeoutId = window.setTimeout('findSize();', 100);
        }
        //图片轮播动画
        var FpicNum = Fpic.length;
        Fpic.eq(0).fadeIn();
        var now = 0;
        setInterval(function () {
            if (now >= FpicNum - 1) {
                Fpic.eq(FpicNum - 1).stop().fadeOut(500);
                now = -1;
            }
            Fpic.eq(now).stop().fadeOut(500);
            now++;
            Fpic.eq(now).stop().fadeIn(500);
        }, 3000);