JS实现图片自动切换，非幻灯片

虽然很简单，但是很实用。

<script>
var Imgi = 0;
var TimeInterval = 1500;
var Arr = new Array();
Arr[0] = 'images/0.jpg';
Arr[1] = 'images/1.jpg';
Arr[2] = 'images/2.jpg';
Arr[3] = 'images/3.jpg';
setInterval(ChangeImg,TimeInterval);
function ChangeImg(){
 var oImg = document.getElementById('oImg');
 if(Imgi == Arr.length-1){
  Imgi = 0;
 }else{
  Imgi += 1; 
 }
 oImg.src = Arr[Imgi];
}
</script>
<img id="oImg" src="images/0.jpg" />