iscroll实现图片的循环滑动

if(null!=document.getElementById("index-splash-block1")){pullDownEl_99 = document.getElementById('pullDown_99');pullUpEl_99 = document.getElementById('pullUp_99');pullDownOffset_99 = pullDownEl_99.offsetHeight;pullUpOffset_99 = pullUpEl_99.offsetHeight;myScroll_99TeHui = new iScroll('index-splash-block1', {snap: true,momentum: false,hScrollbar: false,checkDOMChanges:true,onRefresh: function () {if (pullDownEl_99.className.match('loading')) {pullDownEl_99.className = '';} else if (pullUpEl_99.className.match('loading')) {pullUpEl_99.className = '';}},onScrollMove: function () {if (this.x > 5 && !pullDownEl_99.className.match('flip')) {pullDownEl_99.className = 'flip';this.minScrollX = 0;} else if (this.x < 5 && pullDownEl_99.className.match('flip')) {pullDownEl_99.className = '';this.minScrollX = -pullDownOffset_99;} else if (this.x < (this.maxScrollX - 5) && !pullUpEl_99.className.match('flip')) {pullUpEl_99.className = 'flip';this.maxScrollX = this.maxScrollX;} else if (this.x > (this.maxScrollX + 5) && pullUpEl_99.className.match('flip')) {pullUpEl_99.className = '';this.maxScrollX = pullUpOffset_99;}},onScrollEnd: function () {document.querySelector('#feature-slide-list-items1 > a.current').className = '';document.querySelector('#feature-slide-list-items1 > a:nth-child(' + (this.currPageX+1) + ')').className = 'current';varcount=document.querySelectorAll("#feature-slide-list-items1 > a").length;if (pullDownEl_99.className.match('flip')) {pullDownEl_99.className = 'loading';scrollDirection(this,'next',count);} else if (pullUpEl_99.className.match('flip')) {pullUpEl_99.className = 'loading';scrollDirection(this,'prev',count);}} }); }}document.addEventListener('DOMContentLoaded',setTimeout(loadedFor99TeHui,100),false);