Conditional Ajax inclusion

When you call admin-ajax.php no query is being produced so is_page() or is_category() or any query based conditional tag will never return true.
A better way would be to include your files inside the ajax callback, meaning something like this:

add_action('wp_ajax_PAGE_ONLY_ACTION','PAGE_ONLY_Function');

function PAGE_ONLY_Function(){
    include TEMPLATEPATH . '/ajaxLoops/ajax-open_client_editform.php';
    /**
     * do your page only ajax 
     */
    die();
}


add_action('wp_ajax_CATEGORY_ONLY_ACTION','CATEGORY_ONLY_Function');

function CATEGORY_ONLY_Function(){
    include TEMPLATEPATH . '/ajaxLoops/ajax-submit_client_editform.php';
    /**
     * do your Category only ajax 
     */
    die();
}

So this way you add your action hook all the time but include your files only when needed.