javascript cookie (jquery not needed)
Set the cookie
For one day:
var d = new Date(); d.setTime(d.getTime() + (24*60*60*1000)); var expires = "expires="+ d.toUTCString(); document.cookie = "my-cookie=foo; " + expires + ";path=/";
Read/react to the cookie
if (document.cookie.indexOf("my-cookie=foo") == -1) { doSomething(); }