function releaseFrame() {
  if (top.location != location) {
    top.location.href = document.location.href ;
  }
}

function readability() {
  readStyle = 'style-newspaper';
  readSize = 'size-large';
  readMargin = 'margin-wide';
  _readability_script = document.createElement('SCRIPT');
  _readability_script.type = 'text/javascript';
  _readability_script.src = 'http://lab.arc90.com/experiments/readability/js/readability.js?x=' + (Math
      .random());
  document.getElementsByTagName('head')[0].appendChild(_readability_script);
  _readability_css = document.createElement('LINK');
  _readability_css.rel = 'stylesheet';
  _readability_css.href = 'http://lab.arc90.com/experiments/readability/css/readability.css';
  _readability_css.type = 'text/css';
  _readability_css.media = 'screen';
  document.getElementsByTagName('head')[0].appendChild(_readability_css);
  _readability_print_css = document.createElement('LINK');
  _readability_print_css.rel = 'stylesheet';
  _readability_print_css.href = 'http://lab.arc90.com/experiments/readability/css/readability-print.css';
  _readability_print_css.media = 'print';
  _readability_print_css.type = 'text/css';
  document.getElementsByTagName('head')[0]
      .appendChild(_readability_print_css);
}