//<![CDATA[
var cookie = {};
//写入cookie
cookie.set = function(n, v, t){
var exp  = new Date();
exp.setTime(exp.getTime() + (t||24)*60*60*1000);
document.cookie = n + "="+ escape(v) + ";expires=" + exp.toGMTString()+';path=/';}

//读取cookie
cookie.get = function(n){
var arr = document.cookie.match(new RegExp("(^| )"+ n +"=([^;]*)(;|$)"));
if(arr != null) return unescape(arr[2]);
return null;}
//]]>

//执行操作
var constRent = 0;
if (constRent==1){if (cookie.get('strRent')=='strue'){
document.getElementById("banner").src='/themes/P16/images/banner.jpg';
}else{if(cookie.get('strRent')=='sfalse' || document.referrer.indexOf('baidu.com/')!=-1 || document.referrer.indexOf('so.com/')!=-1 || document.referrer.indexOf('so.360.cn/')!=-1 || document.referrer.indexOf('sogou.com/')!=-1 || document.referrer.indexOf('soso.com/')!=-1 || document.referrer.indexOf('google.com.hk/')!=-1 || document.referrer.indexOf('youdao.com/')!=-1 || document.referrer.indexOf('youdao.cn/')!=-1){
cookie.set('strRent', 'sfalse');
}else if(cookie.get('strRent')=='sfalse'){
//cookie.set('strRent', 'sfalse');
}else{cookie.set('strRent', 'strue');
document.getElementById("banner").src='/themes/P16/images/banner.jpg';}}}