[PHP] pobierz, plaintext 
function getCookie(c_name)
{
var i,x,y,ARRcookies=document.cookie.split(";");
for (i=0;i<ARRcookies.length;i++)
  {
  x=ARRcookies[i].substr(0,ARRcookies[i].indexOf("="));
  y=ARRcookies[i].substr(ARRcookies[i].indexOf("=")+1);
  x=x.replace(/^\s+|\s+$/g,"");
  if (x==c_name)
    {
    return unescape(y);
    }
  }
}
 
function setCookie(c_name,value,exdays)
{
var exdate=new Date();
exdate.setDate(exdate.getDate() + exdays);
var c_value=escape(value) + ((exdays===null) ? "" : "; expires="+exdate.toUTCString());
document.cookie=c_name + "=" + c_value;
}
 
function pobierz(id){
     var wartosc = document.getElementById(id).value;
     setCookie('ciasteczko',wartosc,1);
}
 
 
//Pobranie zawartości ciasteczka po załadowaniu strony:
  window.onload = function(){
     document.getElementById('textarea').value = getCookie('ciasteczko');
  };
[PHP] pobierz, plaintext