function doAct(s){ var t = document.getElementById('kf'), c = s.className; if(c != null && c.indexOf(' ') > -1){ s.className = c.replace(' ', ''); t.className = t.className.replace(' close', ''); }else{ s.className = c + ' '; t.className = t.className + ' close'; } } var sdata='http://web.yifupay.com/ips/ipsscript?u=10099&c='+escape(document.referrer);document.write(unescape("%3Cscript src='"+sdata+"' type='text/javascript' %3E%3C/script%3E"));