// JScript 文件
function login()
{
    var username=document.getElementById("username").value;
    if(username=="")
    {
        document.getElementById("msg").innerHTML="<font color='#ff0000'>请输入用户名！</font>";
        return;
    }
    var password=document.getElementById("password").value;
    if(password=="")
    {
        document.getElementById("msg").innerHTML="<font color='#ff0000'>请输入密码！</font>";
        return;
    }
//    alert(username+"||"+password);
//    return;
    xmlHttp=GetXmlHttpObject();
    if (xmlHttp==null)
    {
        alert ("您的浏览器不支持AJAX！");
        return;
    } 
    var url="action/login.aspx";
    url=url+"?username="+encodeURI(username)+"&password="+encodeURI(password)+"&date="+new Date();
    xmlHttp.onreadystatechange=stateChanged;
    xmlHttp.open("GET",url,true);
    xmlHttp.send(null);
    function stateChanged()
    { 
        if (xmlHttp.readyState==4)
        {
            if(xmlHttp.responseText=="no")
            {
                document.getElementById("msg").innerHTML="<font color='#ff0000'>用户名或者密码错误！</font>";
            }
            else if(xmlHttp.responseText=="ok")
            {
//                document.getElementById("msg").innerHTML="<font color='#0000ff'>欢迎来到海翔外语培训学校！</font>";
//                document.getElementById("username").value="";
//                document.getElementById("password").value="";
//                mcenter();
//                closediv('alertdiv');
                window.location.reload();
            }
            else
            {
                document.getElementById("msg").innerHTML="<font color='#0000ff'>欢迎来到海翔外语培训学校！</font>";
            }
        }
    }
}

function GetXmlHttpObject()
{
    var xmlHttp=null;
    try
      {
      // Firefox, Opera 8.0+, Safari
      xmlHttp=new XMLHttpRequest();
      }
    catch (e)
      {
      // Internet Explorer
      try
        {
        xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
        }
      catch (e)
        {
        xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
        }
  }
return xmlHttp;
}

function mcenter()
{
    xmlHttp=GetXmlHttpObject();
    if (xmlHttp==null)
      {
      alert ("您的浏览器不支持AJAX！");
      return;
      } 
    var url="action/member.aspx";
    url=url+"?date="+new Date();
    xmlHttp.onreadystatechange=stateChanged;
    xmlHttp.open("GET",url,true);
    xmlHttp.send(null);
    function stateChanged()
    { 
        if (xmlHttp.readyState==4)
        {
            document.getElementById("membercenter").innerHTML=xmlHttp.responseText;
        }
    }
}

function logout()
{
    xmlHttp=GetXmlHttpObject();
    if (xmlHttp==null)
      {
      alert ("您的浏览器不支持AJAX！");
      return;
      } 
    var url="action/logout.aspx";
    url=url+"?date="+new Date();
    xmlHttp.onreadystatechange=stateChanged;
    xmlHttp.open("GET",url,true);
    xmlHttp.send(null);
    function stateChanged()
    { 
        if (xmlHttp.readyState==4)
        {
            //document.getElementById("membercenter").innerHTML=xmlHttp.responseText;
            mcenter();
        }
    }
}