JS 精确统计网站访问量。

代码如下：

/*** vlstat 浏览器统计脚本*/var statIdName = "vlstatId";var xmlHttp;/*** 设置cookieId*/function setCookie(c_name, value, expiredays) {var exdate = new Date();exdate.setDate(exdate.getDate() + expiredays);document.cookie = c_name + "=" + escape(value) + ((expiredays == null) ? "" : ";expires=" + exdate.toGMTString()) + ";path=/;domain=cecb2b.com";}/*** 获取cookieId*/function getCookie(c_name) {if (document.cookie.length > 0) {c_start = document.cookie.indexOf(c_name + "=");if (c_start != -1) {c_start = c_start + c_name.length + 1;c_end = document.cookie.indexOf(";", c_start);if (c_end == -1) {c_end = document.cookie.length;}return unescape(document.cookie.substring(c_start, c_end));}}return "";}/*** 获取当前时间戳*/function getTimestamp() {var timestamp = Date.parse(new Date());return timestamp;}/*** 生成statId*/function genStatId() {var cookieId = getTimestamp();cookieId = "vlstat" + "-" + cookieId + "-" + Math.round(Math.random() * 3000000000);return cookieId;}/*** 设置StatId*/function setStatId() {var cookieId = genStatId();setCookie(statIdName, cookieId, 365);}/*** 获取StatId*/function getStatId() {var statId = getCookie(statIdName);if (statId != null && statId.length > 0) {return statId;} else {setStatId();return getStatId();}}/*** 获取UA*/function getUA() {var ua = navigator.userAgent;if (ua.length > 250) {ua = ua.substring(0, 250);}return ua;}/*** 获取浏览器类型*/function getBrower() {var ua = getUA();if (ua.indexOf("Maxthon") != -1) {return "Maxthon";} else if (ua.indexOf("MSIE") != -1) {return "MSIE";} else if (ua.indexOf("Firefox") != -1) {return "Firefox";} else if (ua.indexOf("Chrome") != -1) {return "Chrome";} else if (ua.indexOf("Opera") != -1) {return "Opera";} else if (ua.indexOf("Safari") != -1) {return "Safari";} else {return "ot";}}/*** 获取浏览器语言*/function getBrowerLanguage() {var lang = navigator.browserLanguage;return lang != null && lang.length > 0 ? lang : "";}/*** 获取操作系统*/function getPlatform() {return navigator.platform;}/*** 获取页面title*/function getPageTitle() {return document.title;}/*** 创建一个form* * @return*/function createSubmitForm() {var frm = document.createElement("form");document.body.appendChild(frm);frm.method = "POST";return frm;}/*** 为form创建一个元素* * @param inputForm* @param elementName* @param elementValue* @return*/function createFormElement(frmInput, elementName, elementValue) {var element = document.createElement("input");element.setAttribute("id", elementName);element.setAttribute("name", elementName);element.setAttribute("type", "hidden");element.setAttribute("value", elementValue);frmInput.appendChild(element);return element;}/*** 构造XMLHttpRequest对象* * @return*/function createXMLHttpRequest() { if (window.ActiveXObject) { xmlHttp = new ActiveXObject('Microsoft.XMLHTTP'); } else if (window.XMLHttpRequest) { xmlHttp = new XMLHttpRequest(); } }/*** url指定跳转页,data是要post的数据。func类似于函数指针* * @param url* @param data* @param func* @return*/function AjaxPost(url, data, func) {var httpRequest = createHttpRequest();if (httpRequest) {httpRequest.open("POST", url, true);httpRequest.setRequestHeader("content-length", data.length);httpRequest.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");httpRequest.send(data);httpRequest.onreadystatechange = function() {if (httpRequest.readyState == 4) {try {if (httpRequest.status == 200) {if (func) {/****调用想要的函数**edit by www.jbxue.com**/func(httpRequest.responseText);}}} catch (e) {alert("Error XMLHttpRequest!");}}}} else {alert("Error initializing XMLHttpRequest!");}}function vlstatInitLE(vlch, vlch1, vlch2, vlch3) {var p;var vlstatCH = vlch != null && vlch.length > 0 ? vlch : "";var vlstatCH1 = vlch1 != null && vlch1.length > 0 ? vlch1 : "";var vlstatCH2 = vlch2 != null && vlch2.length > 0 ? vlch2 : "";var vlstatCH3 = vlch3 != null && vlch3.length > 0 ? vlch3 : "";var vlstatCookieId = getStatId();var vlstatUA = encodeURIComponent(getUA());var vlstatIPAddress = document.localName;var vlstatREFURL = encodeURIComponent(document.referrer);var vlstatURL = encodeURIComponent(document.URL);var vlstatScreenX = screen.width;var vlstatScreenY = screen.height;var vlstatOS = getPlatform();var vlstatBrower = getBrower();var vlstatBrowerLanguage = getBrowerLanguage();var vlstatPageTitle = encodeURIComponent(getPageTitle());var vlstatAction = "index.php";p = "cookieId=" + vlstatCookieId + "&ua=" + vlstatUA + "&ip=" + vlstatIPAddress + "&refurl="+ vlstatREFURL + "&url=" + vlstatURL + "&screenX=" + vlstatScreenX + "&screenY=" + vlstatScreenY+ "&os=" + vlstatOS + "&brower=" + vlstatBrower + "&browerLang=" + vlstatBrowerLanguage+ "&title=" + vlstatPageTitle + "&ch=" + vlstatCH + "&ch1=" + vlstatCH1 + "&ch2=" + vlstatCH2+ "&ch3=" + vlstatCH3;var urlGo = vlstatAction + "?" + p;createXMLHttpRequest();xmlHttp.open('GET', urlGo);xmlHttp.send(null);}