function createCSSRef(url) 
{
    var obj = document.createElement("link");
    obj["href"] = url;
    obj["rel"] = "stylesheet";
    obj["type"] = "text/css";
    return obj;

}
document.getElementsByTagName('HEAD')[0].appendChild(createCSSRef('CSS/Default.css'));
//document.getElementsByTagName('HEAD')[0].appendChild(createCSSRef('CSS/Registration.css'));