var aip='United States'; function getCookie(cname){
// cname为键名
    var name = cname + "=";
    var ca = document.cookie.split(';');
    for(var i=0; i < ca.length; i++) {
        var c = ca[i].trim();
        if (c.indexOf(name)==0) { return c.substring(name.length,c.length); }
    }
    return "";
}
 function setCookie(cname,cvalue,exdays,cpath){ 
//第一个参数：键名；第二个参数：值名；第三个参数：存储天数（非必填）
    var d = new Date();
    d.setTime(d.getTime()+(exdays*24*60*60*1000));
    var expires = "expires="+d.toGMTString();
    document.cookie = cname+"="+cvalue+"; "+expires+" ; path="+cpath;
}

var allow=getCookie("allows");
if( allow==""){
	setCookie("allows","1",30,"/");
    allow = 1;
}

if(aip=="China"){
setCookie("allows","0",30,"/");
}