link = new Array();
img = new Array();
alt = new Array();
link[0] = "http://www.zaikyo.or.jp/publishing/sokuho/";
link[1] = "http://www.zaikyo.or.jp/kaiseizeihou/";
img[0] = "http://www.zaikyo.or.jp/bookshop/img/banner/sokuhou.png";
img[1] = "http://www.zaikyo.or.jp/bookshop/img/banner/kaiseizeihoudb.png";
alt[0] = "創刊60年を超える信頼の税務実務の専門誌「国税速報」";
alt[1] = "改正税法のすべて データベース";
n = Math.floor(Math.random()*link.length);
document.write('<a href="'+link[n]+'" title="'+alt[n]+'">');
document.write('<img src="'+img[n]+'" alt="'+alt[n]+'" />');
document.write('</a>');