var dt = new Date(); var hr = dt.getSeconds(); var link; if (hr<=20) hr=1 ; else 
if (hr<=40) hr=2; else hr=3; if (hr == 1) link = "http://www.sinosports.net/items/pingpang/zhuanti/daqiu/index.html"; 
if (hr == 2) link = "http://club.sinosports.net"; 
if (hr == 3) link = "http://www.sinowushu.com/cgi-bin/disponrule.cgi?HTML_FILE=/home/httpd/sinowushu/zhuanti/sandawang/news/news-true.html&RULES=BJWS_sanda,BJWS_sdmore"; var msg="<A HREF="+link+" target=_blank><IMG SRC=http://www.sinosports.net/images/banner/"+hr+".gif border=0></A>"; 
document.write(msg);