if(document.images) {
 var imgs = new Array();
 imgs[0] = new Image();  imgs[0].src = "images/arisa.jpg"; 
 imgs[1] = new Image();  imgs[1].src = "images/arisa2.jpg";
 imgs[2] = new Image();  imgs[2].src = "images/suito.jpg"; 
 imgs[3] = new Image();  imgs[3].src = "images/suito2.jpg";
 imgs[4] = new Image();  imgs[4].src = "images/taki.jpg"; 
 imgs[5] = new Image();  imgs[5].src = "images/taki2.jpg";
 imgs[6] = new Image();  imgs[6].src = "images/natsuko.jpg"; 
 imgs[7] = new Image();  imgs[7].src = "images/natsuko2.jpg";
 imgs[8] = new Image();  imgs[8].src = "images/kishino.jpg"; 
 imgs[9] = new Image();  imgs[9].src = "images/kishino2.jpg";
 imgs[10] = new Image();  imgs[10].src = "images/kawahara.jpg"; 
 imgs[11] = new Image();  imgs[11].src = "images/kawahara2.jpg";
 imgs[12] = new Image();  imgs[12].src = "images/maki.jpg"; 
 imgs[13] = new Image();  imgs[13].src = "images/maki2.jpg";
 imgs[14] = new Image();  imgs[14].src = "images/era.jpg";
 imgs[15] = new Image();  imgs[15].src = "images/era2.jpg";
 imgs[16] = new Image();  imgs[16].src = "images/taro.jpg";
 imgs[17] = new Image();  imgs[17].src = "images/taro2.jpg";
 imgs[18] = new Image();  imgs[18].src = "images/kazuya.jpg";
 imgs[19] = new Image();  imgs[19].src = "images/kazuya2.jpg";
 imgs[20] = new Image();  imgs[20].src = "images/jun.jpg";
 imgs[21] = new Image();  imgs[21].src = "images/jun2.jpg";
 imgs[22] = new Image();  imgs[22].src = "images/aito.jpg";
 imgs[23] = new Image();  imgs[23].src = "images/aito2.jpg";
 imgs[24] = new Image();  imgs[24].src = "images/aska.jpg";
 imgs[25] = new Image();  imgs[25].src = "images/aska2.jpg";
 imgs[26] = new Image();  imgs[26].src = "images/man.jpg";
 imgs[27] = new Image();  imgs[27].src = "images/man2.jpg";
 imgs[28] = new Image();  imgs[28].src = "images/honda.jpg";
 imgs[29] = new Image();  imgs[29].src = "images/honda2.jpg";
 imgs[30] = new Image();  imgs[30].src = "images/yanaka.jpg";
 imgs[31] = new Image();  imgs[31].src = "images/yanaka2.jpg";

}
function rollOver(id, imgname) {document.images[id].src = imgs[imgname].src;
}