//開くたびにランダムな画像を表示する
imgNames=new Array(
"header_01",
"header_02",
"header_03",
"header_04",
"header_05"
);
randomNumber=Math.floor(Math.random()*imgNames.length);
document.write('<IMG SRC="/skins/memoriesoff/img/'+imgNames[randomNumber]+'.jpg"'+"WIDTH=800 HEIGHT=160 boder=0>");