jquery中如何关闭settimeout循环

嘿嘿，我想到一个方法，设置一个状态位，呵呵。
类似，呵呵
function Shift(Obj){
                    var me = this;
                    if (typeof (Obj)=="string") this.Obj = document.getElementById(Obj);
                    else this.Obj = Obj;
                    this.Timer = 10;
                    this.Move = function (y1,y2)
                    {
                        
                        if(y1 == y2){
                            alert('---');
                            $("#cloneList").empty();
                        }else{
                            var y1 = parseInt(this.Obj.style.top,10);
                            var yc = Math.ceil(Math.abs(y1-y2)/20);
                            this.Obj.style.top = y1 + yc * (y1<y2?1:-1) + "px";
                            setTimeout(function (){me.Move(y1,y2)},me.Timer);
                        }                  
                    }
                }