var xmlHttp;
function getajax()
{
try
{
   xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
}
catch(e)
{
  try
     {
     xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
     }
  catch(oc)
   {
     xmlHttp=null;
   }
}
}

function updatePage() {
  if (xmlHttp.readyState < 4) {
    if(document.getElementById("username").value!=null&&document.getElementById("username").value!="")
     {
	  document.getElementById("loginbtn").value="正在登录";
          document.getElementById("loginbtn").disabled=true;
	 }
  }
  if (xmlHttp.readyState == 4) {
    var response = xmlHttp.responseText;
    if (response.indexOf("成功")>=0)
    {
    document.getElementById("loginbtn").value="登 录";
    document.getElementById("loginbtn").disabled=false;
    window.location="index.asp";
    }
    else
    {

    if(response.indexOf("验证码")>0)
    {
     document.getElementById("password_d").innerHTML="登录密码";
    document.getElementById("username_d").innerHTML="帐户名";
    document.getElementById("verify_d").innerHTML="<font color=red>验证码错误</font>";
    document.getElementById("verify").focus();
    document.getElementById("loginbtn").value="登 录";
    document.getElementById("loginbtn").disabled=false;
    //location.reload();
    }

    if(response.indexOf("用户名")>0)
    {
     document.getElementById("password_d").innerHTML="登录密码";
    document.getElementById("username_d").innerHTML="<font color=red>用户名无效</font>";
    document.getElementById("verify_d").innerHTML="请将下面的文字输入框中";
    document.getElementById("username").focus();
    
    document.getElementById("loginbtn").value="登 录";
    document.getElementById("loginbtn").disabled=false;
    //location.reload();
    }
    else if(response.indexOf("密码")>0)
    {
    document.getElementById("password_d").innerHTML="<font color=red>密码无效</font>";
    document.getElementById("username_d").innerHTML="帐户名";
    document.getElementById("verify_d").innerHTML="请将下面的文字输入框中";
    document.getElementById("password").focus();
    document.getElementById("loginbtn").value="登 录";
    document.getElementById("loginbtn").disabled=false;
    //location.reload();
    }
    else if(response.indexOf("暂停")>0)
    {
     document.getElementById("password_d").innerHTML="登录密码";
    document.getElementById("username_d").innerHTML="<font color=red>帐号处于暂停服务状态,请您与客服联系</font>";
    document.getElementById("verify_d").innerHTML="请将下面的文字输入框中";
    document.getElementById("username").focus();
    
    document.getElementById("loginbtn").value="登 录";
    document.getElementById("loginbtn").disabled=false;
    //location.reload();
    }
    else
    {
    //alert(response);
    }
    //document.getElementById("verifyimg").src="checkcode/safecode.asp";
    //alert(response);
    
    }

    
  }
  
  

  

   
}

function CheckLogin(){
    getajax();
    var url = "ajax_asp/checklogin.asp?username="+document.getElementById("username").value+"&password="+document.getElementById("password").value+"&method=CheckLogin&verify="+document.getElementById("verify").value;
    if (document.getElementById("Use_Cookie").checked) {
    url=url+"&Use_Cookie=1";
    }
    else
    {
    url=url+"&Use_Cookie=0";
    }
    //window.clipboardData.setData("Text",url);
    xmlHttp.open("GET", url, true);
    xmlHttp.onreadystatechange = updatePage;
    xmlHttp.send(null);  
	return true;
}