cookie access via javascript starter

gistfile1.js

var cookie = {
    //session cookies
    setCookie: function(name, value) {
        document.cookie = name + "=" + escape(value) + ';path=/';
    },
    getCookie: function(name) {            
        var key, val;
        var cookies = document.cookie.split(";");
        var cookiesLength = cookies.length;
        for (var i=0; i < cookiesLength; i++) {
            key = cookies[i].substr(0, cookies[i].indexOf("="));
            key = key.replace(/^\s+|\s+$/g, "");
            if (key === name) {
                return cookies[i].substr(cookies[i].indexOf("=") + 1);
            }
        }
    },
    cookieExists: function(name) {
        return (cookie.getCookie(name)) ? true : false;
    }
}