Tips.cl

// Lectura de cookie
function readCookie(name)
{
  var ca = document.cookie.split(';');
 
  var nameEQ = name + "=";
  for(var i=0; i < ca.length; i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1, c.length); //delete spaces
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
 
    }
  return null;
}

// Eliminación de cookie
function eraseCookie(name)
{
  createCookie(name, "", -1);
}

// 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=/";
}