Ajax，防止多次点击

问题在这里：

    complete: function() {        $(this).data('requestRunning', false);    }

this

$('#do-login').click(function(e) {    var me = $(this);    e.preventDefault();    if ( me.data('requestRunning') ) {        return;    }    me.data('requestRunning', true);    $.ajax({        type: "POST",        url: "/php/auth/login.php",        data: $("#login-form").serialize(),        success: function(msg) { //stuffs        },        complete: function() { me.data('requestRunning', false);        }    });      });