페이지에 플래시 랜덤으로 삽입하기

<script language="JavaScript" type="text/JavaScript">
var banner=new Array();
banner[0]="<div style='width:426px;border:solid #dedede; border-width:1px 1px 1px 1px;'><embed width='426' height='104' src='/contents/banner/hauzen_kimyuna.swf'></embed></div>";
banner[1]="<div style='width:426px;border:solid #dedede; border-width:1px 1px 1px 1px;'><embed width='426' height='104' src='/contents/banner/ie8.swf'></embed></div>";
var random_banner=Math.floor(Math.random()*(banner.length));
</script>
<script>document.write(banner[random_banner]);</script>