<!--
var http_request = false;
var fun = null;
var size;
var tagsid;
function send_request(url, isLazy) {//初始化、指定处理函数、发送请求的函数
    http_request = false;

    isLazy = isLazy == null ? true : false;
    //开始初始化XMLHttpRequest对象
    if (window.XMLHttpRequest) { //Mozilla 浏览器
        http_request = new XMLHttpRequest();
        if (http_request.overrideMimeType) {//设置MiME类别
            http_request.overrideMimeType('text/xml');
        }
    }
    else if (window.ActiveXObject) { // IE浏览器
        try {
            http_request = new ActiveXObject("Msxml2.XMLHTTP");
        } catch (e) {
            try {
                http_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {
            }
        }
    }
    if (!http_request) { // 异常，创建对象实例失败
        window.alert("不能创建XMLHttpRequest对象实例.");
        return false;
    }
    http_request.onreadystatechange = processRequest;
    // 确定发送请求的方式和URL以及是否同步执行下段代码
    http_request.open("post", encodeURI(encodeURI(url)), isLazy);
    http_request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
    http_request.setRequestHeader("cache-control", "no-cache");
    //alert(url);
    http_request.send(null);//null不能省略
}
// 处理返回信息的函数
function processRequest() {
    if (http_request.readyState == 4) { // 判断对象状态
        if (http_request.status == 200) { // 信息已经成功返回，开始处理信息
            //   HanderMyvalidator();
            if (null != fun) {
                fun();
            }
        } else { //页面不正常
            alert("您请求的页面有异常或您没有权限。");
        }
    }
}
//-->