function banner() {
};

banner = new banner();
number = 0;

// offer1_bannerArray
banner[number++] = "<a href='http://www.adultentertaining.co.uk/jessica-rabbit-2633-p.asp'><img src='http://www.adultentertaining.co.uk/ekmps/shops/adultentertain/resources/Design/offer1.gif' border='0'></a>"
banner[number++] = "<a href='http://www.adultentertaining.co.uk/jessica-rabbit-onyx-2637-p.asp'><img src='http://www.adultentertaining.co.uk/ekmps/shops/adultentertain/resources/Design/offer2.gif' border='0'></a>"
banner[number++] = "<a href='http://www.adultentertaining.co.uk/crystal-clear-vibrators-1954-p.asp'><img src='http://www.adultentertaining.co.uk/ekmps/shops/adultentertain/resources/Design/offer3.gif' border='0'></a>"
banner[number++] = "<a href='http://www.adultentertaining.co.uk/bully-boy-2037-p.asp'><img src='http://www.adultentertaining.co.uk/ekmps/shops/adultentertain/resources/Design/offer4.gif' border='0'></a>"
banner[number++] = "<a href='http://www.adultentertaining.co.uk/topcat-vibrating-lovering-2328-p.asp'><img src='http://www.adultentertaining.co.uk/ekmps/shops/adultentertain/resources/Design/offer5.gif' border='0'></a>"
banner[number++] = "<a href='http://www.adultentertaining.co.uk/sweet-little-nothing-2230-p.asp'><img src='http://www.adultentertaining.co.uk/ekmps/shops/adultentertain/resources/Design/offer6.gif' border='0'></a>"

// keep adding items here...
increment = Math.floor(Math.random() * number);
document.write(banner[increment]);