JS实现的手机端精简幻灯片效果

var curIndex = 0;var timeInterval = 4000;var arr = new Array();arr[0] = "fukeb.jpg";arr[1] = "baopi.jpg";arr[2] = "renliub.jpg";setInterval(changeImg, timeInterval);function changeImg() {  var obj = document.getElementById("showpic");  if (curIndex == arr.length - 1) {    curIndex = 0;  } else {    curIndex += 1;  }  obj.src = "/templets/v1/images/" + arr[curIndex];}document.writeln("<div style=/"width:300px;margin:10px auto 0 auto;overflow:hidden;/"><a href=/"/zixun/?f=top_ad/" target=/"_blank/"><img src=/"/templets/v1/images/fukeb.jpg/" id=/"showpic/" /></a></div>");