function Request() 
{ 
var strHref = window.document.location.href; 
var intPos = strHref.indexOf("?"); 
var strRight = strHref.substr(intPos + 1); 


var arrTmp = strRight.split("u="); 
return arrTmp[1]; 
return ""; 

} 


function gel(a){return document.getElementById?document.getElementById(a):null;}
function check_form()
{
var form = gel("form");
var msg="";
user=form.user.value;
pass=form.pass.value;
if(user=="" ){msg="用户名不能为空！";}
if(pass=="" ){msg=msg + "密码不能为空！";}
gel("m").innerHTML =msg;
gel("m").className ="mm" ;


if (msg == ""){gel("m").innerHTML ="登录中......";gel("m").className ="mm" ;window.setTimeout('ll()',200);return false;}
return false;
}


function ll() {

   var form = gel("form");
   user=form.user.value;
   pass=form.pass.value;
	if (window.XMLHttpRequest) {
		req = new XMLHttpRequest();
		req.onreadystatechange = lls;
		req.open("GET","/user/UserRegister/longin.asp?user="+user+"&pass="+pass+"", true);
		req.send(null);
	} else if (window.ActiveXObject) {
		req = new ActiveXObject("Microsoft.XMLHTTP");
		if (req) {
			req.onreadystatechange =lls;
			req.open("GET","/user/UserRegister/longin.asp?user="+user+"&pass="+pass+"", true);
			req.send();
		}
	}
}
function lls() {
	if (req.readyState == 4) {
		if (req.status == 200) {
			var tt=req.responseText;
			if(tt.indexOf("no") != -1 ){gel("m").innerHTML ="用户名或密码错误！";gel("m").className ="mm" ;};
			if(tt.indexOf("ok") !=-1){gel("m").innerHTML ="登录成功！";gel("m").className ="mm" ;if (Request()=="" || Request()==null){location.href="/user/"}else{location.href=Request()}};

			
		}
		else {gel("m").innerHTML ="网络错误！";gel("m").className ="mm" ;}
	}
}