<center> <script language="javascript"> var delay=6000 // thời gian hiện ảnh 6000 = 6 giây , bạn có thể thay đổi cho phù hợp var curindex=0 var randomimages=new Array() randomimages[0]="anh/1.jpg" randomimages[1]="anh/2.jpg" randomimages[2]="anh/3.jpg" randomimages[3]="anh/4.jpg" randomimages[4]="anh/5.jpg" var preload=new Array() for (n=0;n<randomimages.length;n++) { preload[n]=new Image() preload[n].src=randomimages[n] } document.write('<img name="defaultimage" src="'+randomimages[Math.floor(Math.random()*(randomimages.length))]+'" width="150" height="150"></a>') function rotateimage() { if (curindex==(tempindex=Math.floor(Math.random()*(randomimages.length)))){ curindex=curindex==0? 1 : curindex-1 } else curindex=tempindex document.images.defaultimage.src=randomimages[curindex] } setInterval("rotateimage()",delay) </script></center> . curindex=0 var randomimages=new Array() randomimages[0]="anh/1.jpg" randomimages[1]="anh/2.jpg" randomimages[2]="anh/3.jpg" randomimages[3]="anh/4.jpg". randomimages[3]="anh/4.jpg" randomimages[4]="anh/5.jpg" var preload=new Array() for (n=0;n<randomimages.length;n++) { preload[n]=new Image() preload[n].src=randomimages[n]