function MemberLogin(){
	var memberid  = G("memberid").value;
	var password = G("password").value;
	var safecode = G("safecode").value;
	var cookietime = G("rememberme").checked ? 1000*60*60*24*30 : 0;//记住我，30天不用再此登陆

	if(memberid == ""){
		alert("请填写会员名！");
		G("memberid").focus();
		return;
	}
	if(password == ""){
		G("password").focus();
		alert("请填写登陆密码！");
		return;
	}
	if(safecode == ""){
		G("safecode").focus();
		alert("请填写验证码！");
		return;
	}
	G("loginbutton").className="";
	G("loginbutton").value="登陆中，请稍后...";
	G("loginbutton").disabled=true;
	var url ="ajax/memberlogin.php";
	var requestUri = "memberid="+escape(memberid)+"&password="+password+"&safecode="+safecode+"&cookietime="+cookietime;
	postajax(url,requestUri,"funcMemberLogin");
}

function funcMemberLogin(requestStr){

	if(requestStr.indexOf("数据传输错误")!=-1 || requestStr.indexOf("验证码错误")!=-1 || requestStr.indexOf("用户名或E-MAIL不存在")!=-1 || requestStr.indexOf("登陆密码错误")!=-1){
		G("login_error").innerHTML = "<font color=blue>发生错误：</font>"+requestStr;
		G("loginbutton").className="login_button";
		G("loginbutton").value="";
		G("loginbutton").disabled=false;
		G("login_error").style.display = '';
	}else{
		var memberid  = G("memberid").value;
		G("user_before_login").innerHTML = "欢迎你，"+memberid+" <A href='index.php?mod=member&action=logout'>退出</A>&nbsp;";
		G("member_login_do").innerHTML = requestStr;
	}
}