cookie.js

// Main class
cookie = {};

// Set cookie
cookie.set = function(name,value) {
    document.cookie = name + "=" + value;
}

// Get cookie's value
cookie.get = function(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);
        if(x == name) return(unescape(y));
    }
}

// Delete cookie
cookie.delete = function(name) {
    date = new Date();
    date.setDate(date.getDate() -1);
    document.cookie = escape(name) + '=;expires=' + date;
}