function createCookie(name, value){
  var konec_coo = "";
  document.cookie = name+"="+value+konec_coo+"; expires=Thu, 14 Oct 2299 20:47:11 UTC; path=/";
}
            
function readCookie(name) {
  var name_zn = name + "=";
  var cooall = document.cookie.split(';');
  for(var i=0;i < cooall.length;i++) {
    var c = cooall[i];
    while (c.charAt(0)==' ') {
      c = c.substring(1,c.length);
    }
    if (c.indexOf(name_zn) == 0){ 
      return c.substring(name_zn.length,c.length);
    }
  }
  return null;
}