function callback(obj) 
{
    var silverlight = document.getElementById("silverlight");

    if (silverlight) 
    {
        silverlight.Content.DataModule.PassData(JSON.stringify(obj));
    }
};

function injectScript(url) 
{
    var head = document.getElementsByTagName('head')[0];
    var script = document.createElement('script');
    script.type = 'text/javascript';
    script.src = url;
    head.appendChild(script);
};