纯静态页面访问量

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() + 365 * 24 * 60 * 60 * 1000)
var visits = getCookie("counter")
    if (!visits){
         visits = 1;
    }
    else{
         visits = parseInt(visits) + 1
        setCookie("counter", visits, now);
    } 
document.write("访问量" + visits);