var j, d = "", l = "", m = "", p = "", q = "", z = "", list = new Array()

list[list.length] = 'random/random001.jpg'
list[list.length] = 'random/random002.jpg'
list[list.length] = 'random/random003.jpg'
list[list.length] = 'random/random004.jpg'
list[list.length] = 'random/random005.jpg'
list[list.length] = 'random/random006.jpg'
list[list.length] = 'random/random007.jpg'

j = parseInt(Math.random() * list.length)
j = (isNaN(j))?0:j

document.write("<img src='"+list[j]+"'>")