function read_cookie(name) {
var nameEQ = name + "=";
var ca = document.cookie.split(';');
for (var i=0; i < ca.length; i++) {
var c = ca[i];
while (c.charAt(0)==' ') c = c.substring(1,c.length);
if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
}
return null;
}
document.cookie = "T=1";
if (!read_cookie("T")) {
document.write("Third-party cookies are blocked");
} else {
document.write("Third-party cookies are not blocked");
}
]]>