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Uses action hook of the hybrid theme framework to launch function that modifies the query on the archive page for category 6.\\r\\n\\r\\nSorts by the custom field \\\"event_date\\\" and compares it to the current date.\\r\\n\\r\\nBased on [goto11\\\'s](http://www.goto11.co.uk/) code from the discussion [here](http://esdev.net/sort-events-by-date-in-wordpress-using-custom-fields/comment-page-1/#comment-7111)