function setCookie() {
	var today = new Date();
	var the_date = new Date("December 31, 2023");
	var the_cookie_date = the_date.toGMTString();
	var the_cookie = "users_resolution="+ screen.width;
	var the_cookie = the_cookie + ";expires=" + the_cookie_date;
	document.cookie=the_cookie;
	location = 'index.php?alterares=1';	
}