Get and set cookies

gistfile1.js

/* Get and set cookies 'manually'  */
function setCookie(cookieName, value, expirationYears) {
    var CookieDate = new Date;
        CookieDate.setFullYear(CookieDate.getFullYear() + expirationYears);
  
    document.cookie = cookieName + '=' + value + '; expires=' + CookieDate.toGMTString( ) + ';';
}

function getCookie(cookieName) {
    var currentCookie, 
        cookies = document.cookie.split('; '); /* Get all my cookies */
    
    for (var i = 0; i < cookies.length; i++){
        currentCookie = cookies[i].split('='); /* [ cookieName, value ] */
    
        if(currentCookie[0] === cookieName){
            return currentCookie[1]; /* cookieValue = currentCookie[1] */
        }
    }
}

/* Returns an object like: (Not an Array, Why? I want to identify later each cookie...)
	{
		cookieName1: cookieValue1,
		cookieName2: cookieValue2,
		...
	}
*/
function getAllCookies() {
    var allCookies = {},
        currentCookie, 
        cookies = document.cookie.split('; '); /* Get all my cookies */
        
    for (var i = 0; i < cookies.length; i++){
        currentCookie = cookies[i].split('='); /* [ cookieName, cookieValue ] */
        allCookies[currentCookie[0]] = currentCookie[1]; /* { cookieName: cookieValue } */
    }
    
    return allCookies;
}

/* 
  setCookie('mycookie', 'mycookievalue', 1);
  getCookie('mycookie');
  getAllCookies();
*/