code: public String isOn(final String command, final String target) {
  		LOG.info("Obtain result from | " + command + " | " + target + " |");
  		return is(command, new String[] { unalias(target) });
  	}
docs: <p><code>
  | <i>$pageName=</i> | is | <i>getText</i> | on | <i>//span</i> |
  </code></p>
  
  @param command
  @param target
  @return