JavaScript Cookie

<script type="text/javascript">
    //网页加载
    $(function() {
        var fontsize = getCookie('fontsize');
        if (fontsize != null && fontsize != "") {
            $(".sizepan").removeClass("current");
            $("#sizespan_" + fontsize).addClass("current");
            $(".page-content").attr("style", "font-size:"+fontsize+"px");
        }
    });
    //变更字体大小
    function changeSize(size) {
        $(".sizepan").removeClass("current");
        $("#sizespan_" + size).addClass("current");
        $(".page-content").attr("style", "font-size:" + size + "px");
        setCookie('fontsize', size, 7);
    }
</script>
<script type="text/javascript">
    //获取cookie
    function getCookie(cName) {
        if (document.cookie.length > 0) {
            var cStart = document.cookie.indexOf(cName + "=");
            if (cStart != -1) {
                cStart = cStart + cName.length + 1;
                var cEnd = document.cookie.indexOf(";", cStart);
                if (cEnd == -1) cEnd = document.cookie.length;
                return unescape(document.cookie.substring(cStart, cEnd));
            }
        }
        return "";
    }
    //设置cookie
    function setCookie(cName, value, expiredays) {
        var exdate = new Date();
        exdate.setDate(exdate.getDate() + expiredays);
        document.cookie = cName + "=" + escape(value) +
        ((expiredays == null) ? "" : "; expires=" + exdate.toGMTString());
    }
</script>