// JavaScript Document
var imagenumber = 7 ;
var randomnumber = Math.random() ;
var rand1 = Math.round( (imagenumber-1) * randomnumber) + 1 ;
images = new Array
images[1] = "images/ban_image1.jpg"
images[2] = "images/ban_image2.jpg"
images[3] = "images/ban_image3.jpg"
images[4] = "images/ban_image4.jpg"
images[5] = "images/ban_image5.jpg"
images[6] = "images/ban_image6.jpg"
images[7] = "images/ban_image7.jpg"
var image = images[rand1] ;
document.write('<img src="' + image + '" border="0">') ;