private function _isEqualSelector($node)
    {
        return $node->hasAttribute($this->_attrName)
            && $node->getAttribute($this->_attrName) == $this->_value;
    }
private function _isEqualSelector($node)
    {
        return $node->hasAttribute($this->_attrName)
            && $node->getAttribute($this->_attrName) == $this->_value;
    }
private function _isEqualSelector ( $ node ) { return $ node -> hasAttribute ( $ this -> _attrName ) && $ node -> getAttribute ( $ this -> _attrName ) == $ this -> _value ; }
Equal selector.

Selects elements that have the specified attribute with a value exactly equal
to a certain value.

@param DOMElement $node DOMElement object

@link  http://api.jquery.com/attribute-equals-selector/
@return boolean
Equal selector .