var img = "1.jpg,2.jpg,3.jpg,4.jpg,5.jpg,6.jpg,7.jpg,8.jpg,9.jpg,10.jpg";
var imgs = img.split(",");
var i=0;
var pic = new Array();

for(cnt=0; cnt<imgs.length; cnt++){
	pic[cnt] = new Image();
	pic[cnt].src = "./para/images/" + imgs[cnt];
}

function imgChange(){
	i++;
	i%=imgs.length;
	document.getElementById("img1").src=pic[i].src;
}