public function addElement($attrs)
    {
        if (!$this->getPrefix($attrs['type'])) {
            $attrs['type'] = $this->schemaTargetNamespace . ':' . $attrs['type'];
        }
        $this->elements[$attrs['name']] = $attrs;
        $this->elements[$attrs['name']]['typeClass'] = 'element';

        $this->xdebug("addElement " . $attrs['name']);
        $this->appendDebug($this->varDump($this->elements[$attrs['name']]));
    }