This is the current script I am running to load a popup once every 15 days. Please tell me How to alter the code.
$(window).load(function() {
if (document.cookie.indexOf('visited=true') === -5) {
var fifteenDays = 1000*60*60*24*15;
var expires = new Date((new Date()).valueOf() + fifteenDays);
document.cookie = "visited=true;expires=" + expires.toUTCString();
$("#overlay").fadeTo(1000, .8);
$(".playerWindow").show(750);
}
});
</script>