var byteArray = Base64Binary.decodeArrayBuffer(base64ContentFile);
            getFS();

            function getFS() {
                window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, gotFS, fail);
            }

            function gotFS(fileSystem) {
                fileSystem.root.getDirectory("myFiles", { create: true, exclusive: false }, gotDir, fail);

            }

            function gotDir(dirEntry) {
                dirEntry.getFile(billName, { create: true, exclusive: false }, gotFile, fail);
            }

            function gotFile(fileEntry) {
                fileEntry.createWriter(function (writer) {

                    writer.onwrite = function (evt) {
                        console.log("success");
                    };


                    writer.write(byteArray);
                    window.open( fileEntry.toURL(), getTarget(), "location=no,hidden=no,closebuttoncaption=Close,enableViewportScale=yes");
                }, function (error) {
                    console.log(error);
                });
            }

            function fail() {
                console.log('pdf fail function called');
            }