Would I need to place the slug labels (i.e. slug1, slug2) for the default checkboxes that I need somewhere within this bit of code?
<ul class="job_types">
<?php foreach ( get_job_listing_types() as $type ) : ?>
<li><label for="job_type_<?php echo $type->slug; ?>" class="<?php echo sanitize_title( $type->name ); ?>"><input type="checkbox" name="filter_job_type[]" value="<?php echo $type->slug; ?>" <?php checked(1,1); ?> id="job_type_<?php echo $type->slug; ?>" /> <?php echo $type->name; ?></label></li>
<?php endforeach; ?>
</ul>
