sillyifthenretrievecat

<?php
// added to theme's functions
if( class_exists( 'TribeEvents' ) ) {

    function is_tribe_meta_event_cat_sdmm_imdf( $label=null)  {
        if( !$label ) { $label = __('', 'tribe-events-calendar'); }
        $tribe_ecp = TribeEvents::instance();
        $list = apply_filters('tribe_meta_event_cats', get_the_term_list( get_the_ID(), $tribe_ecp->get_event_taxonomy(), $label ));
        if ($list=='<a href="http://informedmedicaldecisions.org/events/category/sdm-month-events/" rel="tag">SDM Month Events</a>') { $sdmmonthanswer='yes';}else{$sdmmonthanswer='no';}

        return $sdmmonthanswer;

    }

}

// added to .. ecp-page-template.php and .. ecp-single-template.php

$catsdmmonthtrue=is_tribe_meta_event_cat_sdmm_imdf();

if ($catsdmmonthtrue=='yes'){
    get_header('sdmmonth');
}else {
    get_header();
}

?>