function clear_assign($tpl_var)
	{
		if (is_array($tpl_var))
		foreach ($tpl_var as $curr_var)
		unset($this->_tpl_vars[$curr_var]);
		else
		unset($this->_tpl_vars[$tpl_var]);
	}
function clear_assign($tpl_var)
	{
		if (is_array($tpl_var))
		foreach ($tpl_var as $curr_var)
		unset($this->_tpl_vars[$curr_var]);
		else
		unset($this->_tpl_vars[$tpl_var]);
	}
function clear_assign ( $ tpl_var ) { if ( is_array ( $ tpl_var ) ) foreach ( $ tpl_var as $ curr_var ) unset ( $ this -> _tpl_vars [ $ curr_var ] ) ; else unset ( $ this -> _tpl_vars [ $ tpl_var ] ) ; }
clear the given assigned template variable.

@param string $tpl_var the template variable to clear
clear the given assigned template variable .