public function installJoomlaRemovingInstallationFolder($databaseName = null, $databasePrefix = null)
	{
		$this->installJoomla($databaseName, $databasePrefix);

		$this->debug('Removing Installation Folder');
		$this->click(array('xpath' => "//input[@value='Remove \"installation\" folder']"));

		$this->debug('I wait for Removing Installation Folder button to become disabled');
		$this->waitForJS("return jQuery('form#adminForm input[name=instDefault]').attr('disabled') == 'disabled';", TIMEOUT);

		$this->debug('Joomla is now installed');
		$this->see('Congratulations! Joomla! is now installed.', '//h3');
	}