// アクセス毎に違う画像を表示（背景）

var kaHa32=5;
var bgImHa32=new Array(),bgStHa32=new Array();
bgImHa32[0]="http://mt.mizunodesign.com/img/head_bg01.jpg";
bgStHa32[0]="#ffffff no-repeat center top"; 
bgImHa32[1]="http://mt.mizunodesign.com/img/head_bg02.jpg";
bgStHa32[1]="#ffffff no-repeat center top";
bgImHa32[2]="http://mt.mizunodesign.com/img/head_bg03.jpg";
bgStHa32[2]="#ffffff no-repeat center top";
bgImHa32[3]="../img/head_bg04.jpg";
bgStHa32[3]="#ffffff no-repeat center top";
bgImHa32[4]="http://mt.mizunodesign.com/img/head_bg05.jpg";
bgStHa32[4]="#ffffff no-repeat center top";
bgImHa32[5]="http://mt.mizunodesign.com/img/head_bg06.jpg";
bgStHa32[5]="#32452f no-repeat center top";

// html書き込み

var raHa32=Math.floor(Math.random()*(kaHa32+1));
document.writeln('<style type="text/css">');
document.writeln('<!--');
document.writeln('.change_background {background:url('+bgImHa32[raHa32]+') '+bgStHa32[raHa32]+'}');
document.writeln('-->');
document.writeln('</style>');
// End -->