﻿<!--
myWcnt = 8;                               // 数
myWdat = new Array(                       // 設定
  "/parts/index/background-1.jpg",
  "/parts/index/background-2.jpg",
  "/parts/index/background-3.jpg",
  "/parts/index/background-4.jpg",
  "/parts/index/background-5.jpg",
  "/parts/index/background-6.jpg",
  "/parts/index/background-7.jpg",
  "/parts/index/background-8.jpg"
);
myRnd = Math.floor(Math.random()*myWcnt); // 0～(myWcnt-1)の乱数

// </head>タグを作る
document.write("<"+"/head>");
// <body>タグを作る
document.write("<body background=\""+myWdat[myRnd]+"\">"); 
// -->
