Dropdown for taxonomies

gistfile1.txt

function dropdown_taxonomy ( $taxonomy, $all_option = 'todo') {

    $terms = get_terms ( $taxonomy );
  ?>
	<!-- START taxonomy Search -->
	<select name="<?php echo $taxonomy ?>">
		<option value=''><?php echo $all_option ?></option>
		<?php foreach($terms as $term): ?>
		 <option value="<?php echo $term->name ;?>" <?php selected(get_query_var($taxonomy), $term->name, true) ?>>
		 	<?php echo $term->name ?>
		 </option>
		<?php endforeach; ?>
	</select> 
	<!-- END taxonomy Search -->
       
        <?php 
}