am using :

var sQuery = "//builds/build[not( contains( @Number,
                                             ^
                                             ^
                                             ^
                                             ^
                                             ^
                                             ^
                                             ^
                                             ^
                                             ^
'.z' ) )][applications/application[@id='1']]";



        <build id="297" number="2.17.z" releasedate="">
                        ^
                        ^
                        ^
                        ^
                        ^
                        ^
                        ^
                        ^
                        ^
                        ^
                        ^


N is not n

David

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