js移动端判断上下左右划屏

$(function(){
  (function(){

       var LSwiperMaker = function(o){

           var that = this;
           this.config = o;
           this.control = false;
           this.sPos = {};
           this.mPos = {};
           this.dire;

           // this.config.bind.addEventListener('touchstart', function(){ return that.start(); } ,false);
           // 这样不对的，event对象只在事件发生的过程中才有效;
           this.config.bind.addEventListener('touchstart', function(e){ return that.start(e); } ,false);
           this.config.bind.addEventListener('touchmove', function(e){ return that.move(e); } ,false);
           this.config.bind.addEventListener('touchend', function(e){ return that.end(e); } ,false);

       };
       LSwiperMaker.prototype.start = function(e){
            var point = e.touches ? e.touches[0] : e;
            this.sPos.x = point.screenX;
            this.sPos.y = point.screenY;
       };
       LSwiperMaker.prototype.move = function(e){

           var point = e.touches ? e.touches[0] : e;
           this.control = true;
           this.mPos.x = point.screenX;
           this.mPos.y = point.screenY;

       };

       LSwiperMaker.prototype.end = function(e){

           this.config.dire_h  && (!this.control ? this.dire = null : this.mPos.x > this.sPos.x ? this.dire = 'R' : this.dire = 'L');
           this.config.dire_h  || (!this.control ? this.dire = null : this.mPos.y > this.sPos.y ? this.dire = 'D' : this.dire = 'U');

           this.control = false;
           this.config.backfn(this);

       };

       window.LSwiperMaker = LSwiperMaker;
    document.addEventListener('touchmove', function (e) { e.preventDefault(); }, false);// 禁止微信touchmove冲突
}());
    for(var i= 1;i<7;i++){
        function hd(i){
            var a = new LSwiperMaker({
                bind:document.getElementById("page"+i+""),  // 绑定的DOM对象
                dire_h:false,     //true 判断左右， false 判断上下
                backfn:function(o){    //回调事件

　　　　　　　　　　　　//这里写怎样滑动　　　　　　　　　　

                }
            });
        }
        hd(i);
    }

});