function(namespaceURI,localName){
		var attr = this.getNamedItemNS(namespaceURI,localName);
		_removeNamedNode(this._ownerElement,this,attr);
		return attr;
	}
function(namespaceURI,localName){
		var attr = this.getNamedItemNS(namespaceURI,localName);
		_removeNamedNode(this._ownerElement,this,attr);
		return attr;
	}
function ( namespaceURI , localName ) { var attr = this . getNamedItemNS ( namespaceURI , localName ) ; _removeNamedNode ( this . _ownerElement , this , attr ) ; return attr ; }
raises: NOT_FOUND_ERR,NO_MODIFICATION_ALLOWED_ERR
raises : NOT_FOUND_ERR NO_MODIFICATION_ALLOWED_ERR
Removes an attribute from the element.