XML for <SCRIPT>'s XPath Contributed Add-on allows for many common XPath expressions
                        to be used with the W3C Parser. XPath expressions allow a DOM tree to be searched
                        and nodes that match the expression returned without the need to manually traverse
                        the DOM tree programatically.
                    
                    
                        NOTE: While providing support for what should be the
                        majority of the functionality needed for the most common uses of XPath, please
                        keep in mind that the XPath Contributed Add-on is not fully compliant to the
                        W3C XPath specificication and has known limitations. Please read the documentation
                        and ensure any XPath expressions you intend to use are supported before using the
                        XPath Contributed Add-on.
                    
                    
                        XML for <SCRIPT>'s XPath Contributed Add-on is
                        well documented
                        and has
                        two sample applications.