code: public String openNewWindow(final String url, final long timeoutSeconds) {
  		String oldHandle = openNewWindow(timeoutSeconds);
  		get(url);
  		return oldHandle;
  	}
docs: Opens a new window, switches to it, and loads the given URL in the new window.
  
  @param url
  the url to open
  @param timeoutSeconds
  the timeout in seconds to wait for the new window to open
  @return the handle of the window that opened the new window