--- /dev/null
+var getChildren = exports.getChildren = function(elem){
+ return elem.children;
+};
+
+var getParent = exports.getParent = function(elem){
+ return elem.parent;
+};
+
+exports.getSiblings = function(elem){
+ var parent = getParent(elem);
+ return parent ? getChildren(parent) : [elem];
+};
+
+exports.getAttributeValue = function(elem, name){
+ return elem.attribs && elem.attribs[name];
+};
+
+exports.hasAttrib = function(elem, name){
+ return !!elem.attribs && hasOwnProperty.call(elem.attribs, name);
+};
+
+exports.getName = function(elem){
+ return elem.name;
+};