var iValue, rNumber;

var img1=new Image();
var img2=new Image();
var img3=new Image();
var img4=new Image();
var img5=new Image();
var img6=new Image();
img1.src="img/i/01.jpg";
img2.src="img/i/02.jpg";
img3.src="img/i/03.jpg";
img4.src="img/i/04.jpg";
img5.src="img/i/05.jpg";
img6.src="img/i/06.jpg";
function displayImage() {
	iValue=Math.random()*6;
	rNumber=Math.ceil(iValue);
	if(rNumber==0) rNumber++;
	document.image1.src=eval("img"+rNumber+".src");
}