Creación de cookie

// Creación de cookie
function createCookie(name, value, days)
{
    if (days) {
        var date = new Date();
        date.setTime(date.getTime()+(days*24*60*60*1000));
        var expires = "; expires="+date.toGMTString();
    }
    else var expires = "";
 
   document.cookie = name+"="+value+expires+"; path=/";
}