// JavaScript Document

var iValues, rNumber;

var img1 = new Image();
var img2 = new Image();
var img3 = new Image();

img1.src = "img/top_img01.jpg";
img2.src = "img/top_img02.jpg";
img3.src = "img/top_img03.jpg";

function displayImage(){
iValue = Math.random() * 3;
rNumber = Math.ceil(iValue);
if(rNumber==0)
rNumber++;
document.image1.src=eval("img" + rNumber + ".src");
}