How Do I hide search options in template

I found my answer through another thread:

the function supports three option:
function ms_global_search_vertical_form( $page, $search_pages, $hide_options )

so by changing this:
<?php Multisite_Global_Search::ms_global_search_horizontal_form(‘search-results’) ?>
to this:
<?php Multisite_Global_Search::ms_global_search_vertical_form(‘search-results’,”,’hide_options’); ?>

you can hide options.

Thank you!!! Why this isn’t included in the documentation is beyond me…