javascript精确统计网站访问量实例代码

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<script type="text/javascript">
/**
* 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) {
              // 这里可以调用想要的函数
              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);
}
</script>