var loadCss = function(filename) {
  if(document.createStyleSheet) {
    document.createStyleSheet(filename);
  }
  else {
    var styles = "@import url('" + filename + "');";
    var newSS = document.createElement('link');
    newSS.rel = 'stylesheet';
    newSS.href = 'data:text/css,' + escape(styles);
    document.getElementsByTagName("head")[0].appendChild(newSS);
  }
}