javascript通过设置Cookie来切换字体的解决方案

<div id="fonts"></div>
<div class="content">字体切换</div>

$(function () {
        function SetCookie(name, value) {
            var Days = 30;
            var exp = new Date();
            exp.setTime(exp.getTime() + Days * 24 * 60 * 60 * 1000);
            document.cookie = name + "=" + decodeURI(value) + ";expires=" + exp.toGMTString();
        }
        function getCookie(name) {
            var arr = document.cookie.match(new RegExp("(^| )" + name + "=([^;]*)(;|$)"));
            if (arr != null)
                return decodeURI(arr[2]);
            return null;
        }
        var kk = getCookie("fonts");
        if (kk == "") {
            SetCookie("fonts", "lyhei")
        } else if (kk == "songti") {
            $(".content").css('font-family', '"宋体"');
            $("#fonts").text('雅黑');
        } else {
            $(".content").css('font-family', '"微软雅黑"');
            $("#fonts").text('宋体');
        }
        $("#fonts").click(function () {
            if ($("#fonts").text() == "宋体") {
                SetCookie("fonts", "songti");
                $(".content").css('font-family', '"宋体"');
                $("#fonts").text('雅黑');
            } else {
                SetCookie("fonts", "lyhei");
                $(".content").css('font-family', '"微软雅黑"')
                $("#fonts").text('宋体');
            }
        });
    });