var Cookie = {
    getCookie : function(name)  
    {        
        var re = new RegExp(name+'=([^;]+)');
        var val = re.exec(document.cookie);
        if (val) {
            return decodeURIComponent(val[1]);
        } else {
            return null
        }
    },
    deleteCookie : function(name, path, domain) {
        if (this.getCookie(name)) {
            document.cookie = name + "=" +
            ((path) ? "; path=" + path : "") +
            ((domain) ? "; domain=" + domain : "") +
            "; expires=Thu, 01-Jan-70 00:00:01 GMT";
        }
    }
};