通过JavaScript实现多张图片之间的切换

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  if(imgLink[i]!="") {j++;}
 else {break;}
}
function playTran(){
 if (document.all)
  imgInit.filters.revealTrans.play();
}
var key=0;
function nextAd(){
 if(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;

 }
}
//-->