public function uninstallExtension($extensionName)
	{
		$this->amOnPage('/administrator/index.php?option=com_installer&view=manage');
		$this->waitForText('Extensions: Manage', '30', array('css' => 'H1'));
		$this->searchForItem($extensionName);
		$this->waitForElement(array('id' => 'manageList'), '30');
		$this->click(array('xpath' => "//input[@id='cb0']"));
		$this->click(array('xpath' => "//div[@id='toolbar-delete']/button"));
		$this->acceptPopup();
		$this->waitForText('was successful', '30', array('id' => 'system-message-container'));
		$this->see('was successful', '#system-message-container');
		$this->searchForItem($extensionName);
		$this->waitForText(
			'There are no extensions installed matching your query.',
			TIMEOUT,
			array('class' => 'alert-no-items')
		);
		$this->see('There are no extensions installed matching your query.', '.alert-no-items');
		$this->debug('Extension successfully uninstalled');
	}