use of $state_field_label/two labels in Shipping Estimator

[torvista]

zencart/includes/templates/template_default/templates/tpl_modules_shipping_estimator.php

Lines 58 to 69 in 14d292a

	<label class="inputLabel" for="stateZone" id="zoneLabel"><?php echo ENTRY_STATE; ?></label>
	<?php
	if ($flag_show_pulldown_states) {
	?>
	<?php echo zen_draw_pull_down_menu('zone_id', zen_prepare_country_zones_pull_down($selected_country), $state_zone_id, 'id="stateZone"');?>
	<br class="clearBoth" id="stBreak">
	<?php
	}
	?>
	<label class="inputLabel" for="state" id="stateLabel"><?php echo (isset($state_field_label) ? $state_field_label : ''); ?></label>
	<?php echo zen_draw_input_field('state', $selectedState, zen_set_field_length(TABLE_ADDRESS_BOOK, 'entry_state', '40') . ' id="state"') .'&nbsp;<span class="alert" id="stText">&nbsp;</span>'; ?>
	<br class="clearBoth">

Above code shows
the label for the state dropdown,
the optional state dropdown
the label for the state input field
the state input field

1. Why two labels for the same item "state"?
2. What is the expected usage of the $state_field_label variable? This exists in other places where the State field is used but not for the shipping estimator. If here it is empty (which seems to be always the case), the label is hidden by js.
   Why have it at all/have just one label?