Js读写cookie实例

时间：2014-08-06 08:24:51 收藏：0 阅读：243
统计访问次数

<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
        <title>New Page 5</title>
    <meta name="GENERATOR" content="Microsoft FrontPage 3.0">
    <script language="JavaScript">
        <!--
        var caution = false
        function setCookie(name, value, expires, path, domain, secure) {
            var curCookie = name + "=" + escape(value) +
            ((expires) ? "; expires=" + expires.toGMTString() : "") +
            ((path) ? "; path=" + path : "") +
            ((domain) ? "; domain=" + domain : "") +
            ((secure) ? "; secure" : "")
            if (!caution || (name + "=" + escape(value)).length <= 4000)
                document.cookie = curCookie
            else if (confirm("Cookie exceeds 4KB and will be cut!"))
                document.cookie = curCookie
        }
        function getCookie(name) {
            var prefix = name + "="
            var cookieStartIndex = document.cookie.indexOf(prefix)
            if (cookieStartIndex == -1)
                return null
            var cookieEndIndex = document.cookie.indexOf(";", cookieStartIndex + prefix.length)
            if (cookieEndIndex == -1)
                cookieEndIndex = document.cookie.length
            return unescape(document.cookie.substring(cookieStartIndex + prefix.length,
            cookieEndIndex))
        }
        function deleteCookie(name, path, domain) {
            if (getCookie(name)) {
                document.cookie = name + "=" +
                ((path) ? "; path=" + path : "") +
                ((domain) ? "; domain=" + domain : "") +
                "; expires=Thu, 01-Jan-70 00:00:01 GMT"
            }
        }
        function fixDate(date) {
            var base = new Date(0)
            var skew = base.getTime()
            if (skew > 0)
            date.setTime(date.getTime() - skew)
        }
        var now = new Date()
        fixDate(now)
        now.setTime(now.getTime() + 730 * 24 * 60 * 60 * 1000)
        var visits = getCookie("counter")
        if (!visits)
            visits = 1
        else
            visits = parseInt(visits) + 1
        setCookie("counter", visits, now)
        document.write("<font size=6 color=red>欢迎您，您是第：" + visits + " 个访问该站点的访客")
        // -->
    </script>
</head>
<body>
    <p align="right"> </p>
</body>
</html>
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