this.sourceNodes = _nodelist;
this.sourceNodesIndex = 0;
this.nextNode = _nodelist.item(0);
this.chunkState = CHUNK_STATE_NODE;
this.endEvents = new DxArrayDeque();
Document factory = (Document)((this.nextNode.getNodeType() == Node.DOCUMENT_NODE)
? this.nextNode : this.nextNode.getOwnerDocument());
this.domLevel2 = factory.getImplementation().hasFeature( "XML", "2.0" );