var iscapeJS;
if (typeof (iscapeJS) == 'object'
    && typeof (iscapeJS.fontcontrol) == 'function') {
  var font_control = new iscapeJS.fontcontrol();
  font_control.base = 80;
  font_control.minimum = 70;
  font_control.maximum = 110;
  font_control.use_display = true;
  font_control.display_show = 'inline';
}