+ },
+
+ getNodeInsertion: function(node) {
+ var insertion = {};
+ if(node instanceof DocumentNode) {
+ insertion.ofNode = node;
+ insertion.insertsNew = !this.containsNode(node);
+ } else {
+ insertion.ofNode = this.createDocumentNode(node);
+ insertion.insertsNew = true;
+ }
+ return insertion;
+ },
+
+ replaceRoot: function(node) {
+ var insertion = this.getNodeInsertion(node);
+ this.root.detach();
+ defineDocumentProperties(this, insertion.ofNode._$);
+ insertion.ofNode.triggerChangeEvent('nodeAdded');
+ return insertion.ofNode;