// 会员登录面板 JScript 文件

function checklogin(installdir)
{
    var xmlReq = UserLoginCreateXMLHttpRequest();
    if(xmlReq == null){ return; }
    var url = installdir + "Ajax/UserLogin.aspx?rnd="+Math.random();
    xmlReq.open("GET", url, true);
    xmlReq.onreadystatechange = function() {
        switch(xmlReq.readyState)
        {
            case 4:
                var obj = document.getElementById("UserLogin");
                if(obj)
                    obj.innerHTML = xmlReq.responseTEXT;
                break;
            default:
                break;
        }
    } 
    xmlReq.send(null);
}
function UserLoginCreateXMLHttpRequest() { 
    try { return new ActiveXObject("Msxml2.XMLHTTP"); }catch (e) { } 
    try { return new ActiveXObject("Microsoft.XMLHTTP"); }catch (e) { } 
    try { return new XMLHttpRequest(); }catch(e) {} 
    alert("Error：不支持 ajax ！");
    return null;
}