JS循环中使用bind函数的参数传递问题

JS循环中使用bind函数的参数传递问题，问题代码如下：
 for (var sc in result) {
                    var tempp = '<div class="sidebar_todo_temp">' +
                        '<img src="grpcd/common/img/close_s.png">' +
                        '<p class="senderman">' +
                        result[sc].senderuser +
                        '</p>' +
                        '<p class="vtitle">' +
                        result[sc].title +
                        '</p>' +
                        '<p class="senddate">' +
                        fommatDate(result[sc].sendtime) +
                        '</p>' +
                        '</div>';
                    var pp = $(tempp);
                    pp.hover(
                        function() {
                            $(this).find('p').css('background-color', '#2C2424');
                        },
                        function() {
                            $(this).find('p').css('background-color', '#666666');
                        }
                    );

                    $("#sidebar_todo_area").append(pp);
                    pp.bind('click', function() {
                        var opt = {
                            num: 400,
                            title: "页签",
                            imgsrc: "",
                            url: "workflow/towfdeal.do?recordid=" + result[sc].recordid + "&nid=" + result[sc].nid + "&checkflowid=" + result[sc].id + "&inforid=" + result[sc].inforid+"&taskid=" + result[sc].taskid,
                            width: 300,
                            height: 300,
                            circleurl: "",
                            preloading: 0
                        };
                        Core.createPageNC(opt);
                    });
                }

传入的参数是循环的最后一次构造的，改造代码如下：

  for (var sc in result) {
                    var tempp = '<div class="sidebar_todo_temp">' +
                        '<img src="grpcd/common/img/close_s.png">' +
                        '<p class="senderman">' +
                        result[sc].senderuser +
                        '</p>' +
                        '<p class="vtitle">' +
                        result[sc].title +
                        '</p>' +
                        '<p class="senddate">' +
                        fommatDate(result[sc].sendtime) +
                        '</p>' +
                        '</div>';
                    var pp = $(tempp);
                    pp.hover(
                        function() {
                            $(this).find('p').css('background-color', '#2C2424');
                        },
                        function() {
                            $(this).find('p').css('background-color', '#666666');
                        }
                    );
                    var urll="workflow/towfdeal.do?recordid=" + result[sc].recordid + "&nid=" + result[sc].nid + "&checkflowid=" + result[sc].id + "&inforid=" + result[sc].inforid+"&taskid=" + result[sc].taskid;
                    var numm=result[sc].taskid;
                    alert(numm);
                    var opt = {
                            num: numm,
                            title: "页签",
                            imgsrc: "",
                            url: urll,
                            width: 300,
                            height: 300,
                            circleurl: "",
                            preloading: 0
                        };
                    $("#sidebar_todo_area").append(pp);
                    pp.bind('click', opt,function(e) {
                        Core.createPageNC(e.data);
                    });
                }