JavaScript: Get Cookie By Name

get-cookie.js

function getCookie(name) {
    var value = "; " + document.cookie;
    var parts = value.split("; " + name + "=");
    if (parts.length == 2) return parts.pop().split(";").shift();
}

Looks like this came from: http://stackoverflow.com/a/15724300/30529

Might be useful for others to see the explanation there of how it works

It doesn't work if you have only one cookie in document.