图片之间的切换

<script language=JavaScript>
<!--
var imgUrl=new Array();
var imgLink=new Array();
var adNum=0;
var jumpUrl="http://sports.tom.com/";

imgLink[1]="http://sports.tom.com/gnzt/2005yg/";
imgLink[2]="http://sports.tom.com/zhty/";


imgUrl[1]="http://img.sports.tom.com/img/assets/200509/050927071818sportsgnzt200592701.jpg";
imgUrl[2]="http://img.sports.tom.com/img/assets/200509/050927075953zt20050926107.jpg";

var imgPre=new Array();
var j=0;
for (i=1;i<=imgUrl.length-1;i++) {
if(imgLink[i]!="") {j++;} 
else {break;}
}
function playTran(){
if (document.all)
imgInit.filters.revealTrans.play();
}
var key=0;
function nextAd(){
if(adNum<j)adNum++ ;
else adNum=1;
if( key==0 ){key=1;} 
else if (document.all){
imgInit.filters.revealTrans.Transition=6;
imgInit.filters.revealTrans.apply();
playTran();
}
document.images.imgInit.src=imgUrl[adNum];
jumpUrl=imgLink[adNum];
theTimer=setTimeout("nextAd()", 7000);
}
function goUrl(){ 
jumpTarget='_blank';
if (jumpUrl != ''){
if (jumpTarget != '') window.open(jumpUrl,jumpTarget);
else location.href=jumpUrl;
}
}
//-->
</script>

<a href="javascript:goUrl()"><img style="FILTER: 
revealTrans(duration=2,transition=6);border:1 solid black" src="javascript:nextAd()" width=300 
border=0 name=imgInit height="210"></a>
</body>
</html>


详细出处参考：http://www.jb51.net/article/132.htm