/**
 * Stylesheets nachladen
 *
 * @clerk       Tobias Kivelip <live@kleink.de>
 * @author      Tobias Kivelip <tobi@kivelip.net>
 * @copyright   Copyright (c) 2007 - 2008, Tobias Kivelip
 */
function addStylesheet(url) {
    var element = document.createElement('link');
    element.setAttribute('rel', 'stylesheet');
    element.setAttribute('type', 'text/css');
    element.setAttribute('href', url);
    document.getElementsByTagName('head')[0].appendChild(element);
}