var Array = new Array(
"<iframe title='YouTube video player' width='120' height='95' src='http://www.youtube.com/embed/u9xJOCtlWnU' frameborder='0' allowfullscreen></iframe>",
"<iframe title='YouTube video player' width='120' height='95' src='http://www.youtube.com/embed/fuEeHsFpgu8' frameborder='0' allowfullscreen></iframe>",
"<iframe title='YouTube video player' width='120' height='95' src='http://www.youtube.com/embed/ZBSQDwSxXyI' frameborder='0' allowfullscreen></iframe>",
"<iframe title='YouTube video player' width='120' height='95' src='http://www.youtube.com/embed/i_LG1vAY478' frameborder='0' allowfullscreen></iframe>",
"<iframe title='YouTube video player' width='120' height='95' src='http://www.youtube.com/embed/TMxj0B5kN3U' frameborder='0' allowfullscreen></iframe>",
"<iframe title='YouTube video player' width='120' height='95' src='http://www.youtube.com/embed/BLK8i979cbw' frameborder='0' allowfullscreen></iframe>",
"<iframe title='YouTube video player' width='120' height='95' src='http://www.youtube.com/embed/DKRp3s09naE' frameborder='0' allowfullscreen></iframe>",
"<iframe title='YouTube video player' width='120' height='95' src='http://www.youtube.com/embed/zdrdJblFNAU' frameborder='0' allowfullscreen></iframe>",
"<iframe title='YouTube video player' width='120' height='95' src='http://www.youtube.com/embed/M7yGzjr58So' frameborder='0' allowfullscreen></iframe>",
"<iframe title='YouTube video player' width='120' height='95' src='http://www.youtube.com/embed/MhbtOFiHw5o' frameborder='0' allowfullscreen></iframe>",
"<iframe title='YouTube video player' width='120' height='95' src='http://www.youtube.com/embed/_EejKfizatk' frameborder='0' allowfullscreen></iframe>",
"<iframe title='YouTube video player' width='120' height='95' src='http://www.youtube.com/embed/fwpWdbeGjpI' frameborder='0' allowfullscreen></iframe>",
"<iframe title='YouTube video player' width='120' height='95' src='http://www.youtube.com/embed/XCQfJ4mlVf0' frameborder='0' allowfullscreen></iframe>",
"<iframe title='YouTube video player' width='120' height='95' src='http://www.youtube.com/embed/DuJztEbpHHY' frameborder='0' allowfullscreen></iframe>",
"<iframe title='YouTube video player' width='120' height='95' src='http://www.youtube.com/embed/-iXuYbHdnjMY frameborder='0' allowfullscreen></iframe>",
"<iframe title='YouTube video player' width='120' height='95' src='http://www.youtube.com/embed/dSzzw6GDb3g' frameborder='0' allowfullscreen></iframe>",
"<iframe title='YouTube video player' width='120' height='95' src='http://www.youtube.com/embed/Ql35t3sCaFI' frameborder='0' allowfullscreen></iframe>",
"<iframe title='YouTube video player' width='120' height='95' src='http://www.youtube.com/embed/dAbwM6DdTIs' frameborder='0' allowfullscreen></iframe>",
"<iframe title='YouTube video player' width='120' height='95' src='http://www.youtube.com/embed/r7rve7knxqo' frameborder='0' allowfullscreen></iframe>",

"<iframe title='YouTube video player' width='120' height='95' src='http://www.youtube.com/embed/-o2A8EpW9V0' frameborder='0' allowfullscreen></iframe>",
"<iframe title='YouTube video player' width='120' height='95' src='http://www.youtube.com/embed/D_AAFbTJ_gw' frameborder='0' allowfullscreen></iframe>",
"<iframe title='YouTube video player' width='120' height='95' src='http://www.youtube.com/embed/6PaqHGkOrk0' frameborder='0' allowfullscreen></iframe>",
"<iframe title='YouTube video player' width='120' height='95' src='http://www.youtube.com/embed/c4v4XWUHy_0' frameborder='0' allowfullscreen></iframe>");

<!--ここの最後の数字はファイル数-->
var File = Array[Math.floor(Math.random()*23)];
document.write(File);