解析

<script type='text/javascript'> var sRef,sCG; try{sRef=top.document.referrer;}catch(e){sRef='err';} if(sRef=='err'){try{sRef=parent.document.referrer;}catch(e){sRef='err';}} if(sRef=='err'){sRef=document.referrer;} sCG='<img src=http://ana2.tatsumi-sys.jp/cleargif.asp?uid=2004351&gid=1&pid=1&ref='+escape(sRef)+'&scw='+screen.width+'&sch='+screen.height+'&scd='+screen.colorDepth+'&ck='+navigator.cookieEnabled+' border=0 width=1 height=1>'; document.write(sCG); </script><noscript><a href='http://www.tatsumi-sys.jp/analyzer/'><img src='http://ana2.tatsumi-sys.jp/cleargif.asp?uid=2004351&gid=1&pid=1' border='0' width='1' height='1' alt='ASP'></a></noscript>