function get_script_area()
{
    var parentElement = document.getElementsByTagName("head");
    if (!parentElement || parentElement.length < 1)
    {
        parentElement = document.body;
    }
    else
    {
        parentElement = parentElement[0];
    }
    return parentElement;
}

function refresh(key)
{
    //alert('hello');
    //$(div).hide();
    //$(div).appendChild('hello');
    //$(div).update('hello');
    var scriptTag = document.createElement("script");
    scriptTag.type = "text/javascript";
    scriptTag.src = "http://www.bafflebot.com/challenges/add_baffle?baffle_refresh=true&baffle_public_key="+key;
    get_script_area().appendChild(scriptTag);
}