function random(){

ban=new Array(2);

i=Math.floor(Math.random()*ban.length);

ban[0]='<a href="jmp/bn_ticketweb.html" target="_blank"><img src="images/banners/tws.jpg" alt="チケットWeb松竹" width="225" height="56"></a>';
ban[1]='<a href="jmp/bn_kabukimb.html" target="_blank"><img src="images/banners/kbm_comp_bn.gif" alt="携帯公式サイト「歌舞伎モバイル」" width="225" height="56" /></a>';
/*ban[3]='<a href="jmp/bn_cinekabu.html" target="_blank"><img src="images/banners/cinemakabuki.jpg" alt="シネマ歌舞伎" width="225" height="56"></a>';
*/
document.write(ban[i]);
}