var afnum = 5;
var af = new Array( );

        af[0] = ( '<iframe frameborder="0" allowtransparency="true" height="600" width="160" marginheight="0" scrolling="no" src="http://ad.jp.ap.valuecommerce.com/servlet/htmlbanner?sid=2290105&pid=878143815" marginwidth="0"><script language="javascript" src="http://ad.jp.ap.valuecommerce.com/servlet/jsbanner?sid=2290105&pid=878143815"></script><noscript><a href="http://ck.jp.ap.valuecommerce.com/servlet/referral?sid=2290105&pid=878143815" target="_blank" ><img src="http://ad.jp.ap.valuecommerce.com/servlet/gifbanner?sid=2290105&pid=878143815" height="600" width="160" border="0"></a></noscript></iframe>' );
        af[1] = ( '<iframe frameborder="0" allowtransparency="true" height="600" width="160" marginheight="0" scrolling="no" src="http://ad.jp.ap.valuecommerce.com/servlet/htmlbanner?sid=2290105&pid=878143817" marginwidth="0"><script language="javascript" src="http://ad.jp.ap.valuecommerce.com/servlet/jsbanner?sid=2290105&pid=878143817"></script><noscript><a href="http://ck.jp.ap.valuecommerce.com/servlet/referral?sid=2290105&pid=878143817" target="_blank" ><img src="http://ad.jp.ap.valuecommerce.com/servlet/gifbanner?sid=2290105&pid=878143817" height="600" width="160" border="0"></a></noscript></iframe>' );
        af[2] = ( '<iframe frameborder="0" allowtransparency="true" height="600" width="160" marginheight="0" scrolling="no" src="http://ad.jp.ap.valuecommerce.com/servlet/htmlbanner?sid=2290105&pid=878143819" marginwidth="0"><script language="javascript" src="http://ad.jp.ap.valuecommerce.com/servlet/jsbanner?sid=2290105&pid=878143819"></script><noscript><a href="http://ck.jp.ap.valuecommerce.com/servlet/referral?sid=2290105&pid=878143819" target="_blank" ><img src="http://ad.jp.ap.valuecommerce.com/servlet/gifbanner?sid=2290105&pid=878143819" height="600" width="160" border="0"></a></noscript></iframe>' );
        af[3] = ( '<iframe frameborder="0" allowtransparency="true" height="600" width="160" marginheight="0" scrolling="no" src="http://ad.jp.ap.valuecommerce.com/servlet/htmlbanner?sid=2290105&pid=878143821" marginwidth="0"><script language="javascript" src="http://ad.jp.ap.valuecommerce.com/servlet/jsbanner?sid=2290105&pid=878143821"></script><noscript><a href="http://ck.jp.ap.valuecommerce.com/servlet/referral?sid=2290105&pid=878143821" target="_blank" ><img src="http://ad.jp.ap.valuecommerce.com/servlet/gifbanner?sid=2290105&pid=878143821" height="600" width="160" border="0"></a></noscript></iframe>' );
        af[4] = ( '<iframe frameborder="0" allowtransparency="true" height="600" width="160" marginheight="0" scrolling="no" src="http://ad.jp.ap.valuecommerce.com/servlet/htmlbanner?sid=2290105&pid=878143823" marginwidth="0"><script language="javascript" src="http://ad.jp.ap.valuecommerce.com/servlet/jsbanner?sid=2290105&pid=878143823"></script><noscript><a href="http://ck.jp.ap.valuecommerce.com/servlet/referral?sid=2290105&pid=878143823" target="_blank" ><img src="http://ad.jp.ap.valuecommerce.com/servlet/gifbanner?sid=2290105&pid=878143823" height="600" width="160" border="0"></a></noscript></iframe>' );

Rnd = Math.floor( Math.random ( ) * afnum );
document.write( af[Rnd] );