public function addElement($element, $name = null) {
		if ($name === null) {
			$this->_elements[] = $element;
		} else {
			$this->_elements[$name] = $element;
		}
		
		return $this;
	}
public function addElement($element, $name = null) {
		if ($name === null) {
			$this->_elements[] = $element;
		} else {
			$this->_elements[$name] = $element;
		}
		
		return $this;
	}
public function addElement ( $ element , $ name = null ) { if ( $ name === null ) { $ this -> _elements [ ] = $ element ; } else { $ this -> _elements [ $ name ] = $ element ; } return $ this ; }
Add the element

@param  mixed  $element
@param  string $name
@return MultiElementsAbstract
Add the element