public static function unpublish($task = 'unpublish', $alt = 'JTOOLBAR_UNPUBLISH', $check = false)
	{
		static::getRoot()->appendButton('Standard', 'unpublish', $alt, $task, $check);
	}
public static function unpublish($task = 'unpublish', $alt = 'JTOOLBAR_UNPUBLISH', $check = false)
	{
		static::getRoot()->appendButton('Standard', 'unpublish', $alt, $task, $check);
	}
public static function unpublish ( $ task = 'unpublish' , $ alt = 'JTOOLBAR_UNPUBLISH' , $ check = false ) { static :: getRoot ( ) -> appendButton ( 'Standard' , 'unpublish' , $ alt , $ task , $ check ) ; }
Writes a common 'unpublish' button.

@param   string   $task   An override for the task.
@param   string   $alt    An override for the alt text.
@param   boolean  $check  True if required to check that a standard list item is checked.
@return  void
Writes a common unpublish button .