var txt = new Array();
txt[0]="<a href='http://www.rakuten.co.jp/catii/' target='_blank'><img border='0' src='http://www.bushranger.jp/images/adv/catii.gif' width='234' height='60'></a>";
txt[1]="<a href='http://www.fdmtl.com/' target='_blank'><img src='images/adv/fdmtl.gif' width='234' height='60' border='0' alt='Fundamental Agreement LUXURY' /></a>";
txt[2]="<a href='http://www.rakuten.co.jp/catii/' target='_blank'><img border='0' src='http://www.bushranger.jp/images/adv/catii.gif' width='234' height='60'></a>";
txt[3]="<a href='http://www.rakuten.co.jp/catii/' target='_blank'><img border='0' src='http://www.bushranger.jp/images/adv/catii.gif' width='234' height='60'></a>";
txt[4]="<a href='http://www.fdmtl.com/' target='_blank'><img src='images/adv/fdmtl.gif' width='234' height='60' border='0' alt='Fundamental Agreement LUXURY' /></a>";
mmax = 5; //メッセージ行数
txtno = Math.floor(Math.random() * mmax);
document.write(txt[txtno]);