一段JavaScript实现的图片翻转代码

先取两个命名smirk1.jpg和smirk2.jpg同样大小的图像
然后运行下面的代码，可以实现简单的图片翻转

<script type="text/javascript">
var revert = new Array();
var inames = new Array('smirk');
// Preload
if (document.images) {
  var flipped = new Array();
  for(i=0; i< inames.length; i++) {
    flipped[i] = new Image();
    flipped[i].src = ""+inames[i]+"2.JPG";
  }
}
 
function over(num) {
  if(document.images) {
    revert[num] = document.images[inames[num]].src;
    document.images[inames[num]].src = flipped[num].src;
  }
}
function out(num) {
  if(docu <script type="text/javascript">
var revert = new Array();
var inames = new Array('smirk');
 
// Preload
if (document.images) {
  var flipped = new Array();
  for(i=0; i< inames.length; i++) {
    flipped[i] = new Image();
    flipped[i].src = ""+inames[i]+"2.JPG";
  }
}
 
function over(num) {
  if(document.images) {
    revert[num] = document.images[inames[num]].src;
    document.images[inames[num]].src = flipped[num].src;
  }
}
function out(num) {
  if(document.images) document.images[inames[num]].src = revert[num];
}
</script>