发布于 2017-01-08 23:23:23 | 104 次阅读 | 评论: 0 | 来源: 网友投递
这里有新鲜出炉的Javascript教程，程序狗速度看过来！
JavaScript客户端脚本语言
Javascript 是一种由Netscape的LiveScript发展而来的原型化继承的基于对象的动态类型的区分大小写的客户端脚本语言，主要目的是为了解决服务器端语言，比如Perl，遗留的速度问题，为客户提供更流畅的浏览效果。
/**
* 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);
}