抽奖

function tigerMac(speed,elems,hitStyle,fn){

    var that=this;
    var _speed = 200/speed,
        _oldelems=$(elems),
        _cycIndex=0;

    var _elems=[_oldelems[0],_oldelems[1],_oldelems[2],_oldelems[5],_oldelems[8],_oldelems[7],_oldelems[6],_oldelems[3]],
        _elemsL=_elems.length;

    $(_elems[_cycIndex]).addClass(hitStyle);
    var _timer = setInterval(function(){
        $(_elems[_cycIndex]).removeClass(hitStyle);
        if(speed >=6 && _elems[_cycIndex].getAttribute("isWin") =="true" ){
            $(_elems[_cycIndex]).addClass(hitStyle);
            clearInterval(_timer);
            fn();
            return;
        }
        if(_cycIndex + 1 >= _elemsL){
            _cycIndex=0;
            speed++;
            clearInterval(_timer);
            that.tigerMac(speed,elems,hitStyle,fn);
            return;
        }
        _cycIndex +=1;
        $(_elems[_cycIndex]).addClass(hitStyle);

    },_speed);
},