Two while loops working in parallel at the same time

Hello, how can I run a .vi with two while loops working in parallel at the same time? . I want that when I run a vi both can be activated o desactivate, but I can't get it. What can I do?
Thanks a lot.
Luz

Here are some links for state machines.
http://zone.ni.com/devzone/conceptd.nsf/webmain/c74cec177a289dbd86256c4e00600196
http://zone.ni.com/devzone/conceptd.nsf/webmain/8C4EECACF084F8E986256802007B9186
http://sine.ni.com/nips/cds/view/p/lang/en/nid/13747
http://sine.ni.com/apps/utf8/niepd_web_display.display_epd4?p_guid=B45EACE3DE6756A4E034080020E74861
http://sine.ni.com/apps/utf8/niepd_web_display.display_epd4?p_guid=B45EACE3E1E956A4E034080020E74861

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Two while loops working in parallel at the same time

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