function random(){
tag=new Array();  
tag[0]='<a href="http://bdl-track.spmax.jp/click/click.php?id=4f95387643d591055d3f97040285bea01f" id="xmax:779xc7dx30f8x5b"><span id="xmax:779xc7dx30f8x6eacx2a">468�~60Vol.1�iPC�j</span></a& gt;<span id="imp:779xc7dx30f8x6eacx2a">imp</span><script src="http://images.xmax.jp/tracking/_click.php?mpv=779xc7dx30f8x5b&mpd=779xc7dx30f8x6eacx2a&guid=on" type="text/javascript" charset="utf-8"></script>';
tag[1]='<iframe frameborder="0" allowtransparency="true" height="60" width="468" marginheight="0" scrolling="no" src="http://ad.jp.ap.valuecommerce.com/servlet/htmlbanner?sid=2619799&pid=878937429" marginwidth="0"><script language="javascript" src="http://ad.jp.ap.valuecommerce.com/servlet/jsbanner?sid=2619799&pid=878937429"></script><noscript><a href="http://ck.jp.ap.valuecommerce.com/servlet/referral?sid=2619799&pid=878937429" target="_blank" ><img src="http://ad.jp.ap.valuecommerce.com/servlet/gifbanner?sid=2619799&pid=878937429" height="60" width="468" border="0"></a></noscript></iframe>';
tag[2]='<iframe frameborder="0" allowtransparency="true" height="60" width="468" marginheight="0" scrolling="no" src="http://ad.jp.ap.valuecommerce.com/servlet/htmlbanner?sid=2619799&pid=878937422" marginwidth="0"><script language="javascript" src="http://ad.jp.ap.valuecommerce.com/servlet/jsbanner?sid=2619799&pid=878937422"></script><noscript><a href="http://ck.jp.ap.valuecommerce.com/servlet/referral?sid=2619799&pid=878937422" target="_blank" ><img src="http://ad.jp.ap.valuecommerce.com/servlet/gifbanner?sid=2619799&pid=878937422" height="60" width="468" border="0"></a></noscript></iframe>';
tag[3]='<iframe frameborder="0" allowtransparency="true" height="60" width="468" marginheight="0" scrolling="no" src="http://ad.jp.ap.valuecommerce.com/servlet/htmlbanner?sid=2619799&pid=878916206" marginwidth="0"><script language="javascript" src="http://ad.jp.ap.valuecommerce.com/servlet/jsbanner?sid=2619799&pid=878916206"></script><noscript><a href="http://ck.jp.ap.valuecommerce.com/servlet/referral?sid=2619799&pid=878916206" target="_blank" ><img src="http://ad.jp.ap.valuecommerce.com/servlet/gifbanner?sid=2619799&pid=878916206" height="60" width="468" border="0"></a></noscript></iframe>';
tag[4]='<iframe frameborder="0" allowtransparency="true" height="60" width="468" marginheight="0" scrolling="no" src="http://ad.jp.ap.valuecommerce.com/servlet/htmlbanner?sid=2619799&pid=878916184" marginwidth="0"><script language="javascript" src="http://ad.jp.ap.valuecommerce.com/servlet/jsbanner?sid=2619799&pid=878916184"></script><noscript><a href="http://ck.jp.ap.valuecommerce.com/servlet/referral?sid=2619799&pid=878916184" target="_blank" ><img src="http://ad.jp.ap.valuecommerce.com/servlet/gifbanner?sid=2619799&pid=878916184" height="60" width="468" border="0"></a></noscript></iframe>';
i=Math.floor(Math.random()*tag.length);  
document.write(tag[i]); 
}