# Flash and XML Tut question

**URL:** <https://forum.kirupa.com/t/flash-and-xml-tut-question/311160>\
**Category:** flash\
**Created:** [June 29, 2010, 4:56am UTC](https://forum.kirupa.com/t/flash-and-xml-tut-question/311160 "2010-06-29T04:56:35Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![spyderfx](https://avatars.discourse-cdn.com/v4/letter/s/c2a13f/32.png) [@spyderfx](https://forum.kirupa.com/u/spyderfx)\
**Post date:** [June 29, 2010, 4:56am UTC](https://forum.kirupa.com/t/flash-and-xml-tut-question/311160/1 "2010-06-29T04:56:35Z")

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I was using this tutorial ([http://www.kirupa.com/developer/flashcs3/using\_xml\_as3\_pg1.htm](http://www.kirupa.com/developer/flashcs3/using_xml_as3_pg1.htm)) to learn how to implement XML into my Flash. It was extremely helpful but there was one oversight in the explanation.

In the code, he does trace(bookInput), but doesn’t explain what bookInput is exactly. It doesn’t show up anywhere else in the code or the loaded xml document. Can someone please explain what it is?