codice:
<script language="javascript" type="text/javascript">
var bgimages=new Array();
bgimages[0]="immagini/sfondo1.jpg";
bgimages[1]="immagini/sfondo2.jpg";
bgimages[2]="immagini/sfondo3.jpg";
bgimages[3]="immagini/sfondo4.jpg";
bgimages[4]="immagini/sfondo5.jpg";
//preload images
var pathToImg=new Array();
for (i=0;i<bgimages.length;i++){
pathToImg[i]=new Image();
pathToImg[i].src=bgimages[i];
}
var inc=-1;
function bgSlide(){
if (inc<bgimages.length-1){
inc++;
}else{
inc=0;
document.getElementById('tbIndex').style.backgroundImage=bgimages[inc];
}
}
window.onload=function(){
setTimeut('bgSlide()',3000);
}
</script>