+ append: function (children) {
+ if ($.type(children) == "string")
+ $.each(this, function (node) {
+ var doc = $.document(node);
+
+ // XXX: implement wrapper system
+ var div = doc.createElement("div");
+ div.innerHTML = children;
+
+ while (div.childNodes.length != 0) {
+ var child = div.childNodes[0];
+ node.appendChild(child);
+ }
+ });
+ else
+ $.each(this, function (node) {
+ $.each(children, function (child) {
+ node.appendChild(child);
+ });
+ });
+ },
+
+ xpath: function (expression) {
+ var value = $([]);
+
+ $.each(this, function (node) {
+ var doc = $.document(node);
+ var results = doc.evaluate(expression, node, null, XPathResult.ANY_TYPE, null);
+ var result;
+ while (result = results.iterateNext())
+ value.add([result]);
+ });
+
+ return value;
+ },
+
+ clone: function (deep) {
+ return $($.map(this, function (node) {
+ return node.cloneNode(deep);
+ }));
+ },
+