code: public void blur() {
  		if (getDriver() instanceof JavascriptExecutor)
  			getSeb().getJavascriptLibrary().callEmbeddedSelenium(getDriver(), "triggerEvent", this, "blur");
  		else
  			throw new SebException("Triggering blur event is supported with JavascriptExecutor driver only, this is " + getDriver().getClass());
  	}
docs: Loose focus from element.
  It works only for {@link JavascriptExecutor} drivers.
  It throws {@link SebException} if driver is not
  implementing {@link JavascriptExecutor}.