Categories and Sub Categories in custom taxonomies

Categories and Sub Categories in custom taxonomies

I find and use the following code to display sub categories for default
taxonomy 'category' on my site, but I created a custom taxonomy , and can
not alter the code so that he was doing the same thing for the new
taxonomy, help please
<?php
if(is_category()) {
$subcategories = get_terms('category', 'parent='.get_query_var('cat'));
if(empty($subcategories)) {
$thiscat = get_term(get_query_var('cat'),'category');
$subcategories = get_terms('category',
'parent='.$thiscat->parent.'');
}
if(empty($subcategories)) $subcategories = array();
if(!empty($subcategories)) {
echo '<ul>';
foreach($subcategories as $subcat) {
if(get_query_var('cat') == $subcat->term_id) $current = '
current-cat'; else $current = '';
echo '
<li class="cat-item cat-item-'.$subcat->term_id.$current.'">
<a href="'.get_category_link( $subcat->term_id ).'"
title="'.$subcat->description.'">'.$subcat->name.'</a>
</li>';
}
echo '</ul>';
}
}
else {
// If no current cat query, just get the top level ones using
wp_list_categories.
?>
<ul>
<?php wp_list_categories('title_li=&depth=1');?>
</ul>
<?php
}
?>