var randomnumber=Math.floor(Math.random()*3)+1
var image=new Array()

image[1]="/content/home/01.jpg"
image[2]="/content/home/02.jpg"
image[3]="/content/home/03.jpg"

document.write('<img src="'+ image[randomnumber] +'" alt="frontimage" width="542" height="324" />')