﻿<!--
var wall = new Array();

/* 使用する背景画像を好きなだけ記述 */
wall[0] = "images/bg1.gif";
wall[1] = "images/bg2.gif";
wall[2] = "images/bg3.gif";

var rnd = Math.floor((Math.random() * 100)) % wall.length;
document.write('<style type="text/css">body { background-image:url(' , wall[rnd] , '); }</style>');
// -->