JavaScript code that pops up once every 24 hours (using cookies)_advertising code

function jb51tuitan(){
if (getCookie('jb51popped' )==''){
//Code or some operations to be executed
setCookie("jb51popped","ok"); //Writing cookies indicates that it has been executed.
alert("ok");
}
}
jb51tuitan()
function setCookie(name, value) 
{
 var argv = setCookie.arguments;
var argc = setCookie.arguments.length;
var expires = (argc > 2) ? argv[2] : null;
if(expires!=null)
{
var LargeExpDate = new Date ();
LargeExpDate.setTime(LargeExpDate.getTime() (expires*1000*3600*24));
}
document.cookie = name "=" escape (value) ((expires == null) ? "" : ("; expires=" LargeExpDate.toGMTString()));
}

function getCookie(Name)
{
var search = Name "= "
if(document.cookie.length > 0)
{
offset = document.cookie.indexOf(search)
if(offset != -1)
{
offset = search.length
end = document.cookie.indexOf(";", offset)
if(end == -1) end = document.cookie.length
return unescape(document.cookie. substring(offset, end))
                                                                                                                                                                                   . Just put it in the judgment statement.