<!--

function setBackground() {

bg_list = new Array(
		"../images/bg/bg01.jpg",
		"../images/bg/bg02.jpg",
		"../images/bg/bg03.jpg",
		"../images/bg/bg04.jpg");

if (!(bg_offset=readCookie('bg_offset'))) bg_offset=0;

bg_offset=(parseInt(bg_offset))%bg_list.length;

createCookie('bg_offset',bg_offset+1,45);

body = document.getElementsByTagName("BODY")[0];

body.style.backgroundImage = "url("+bg_list[bg_offset]+")";

}

-->