Display breadcrumb for Sub-categories

Hi,

I would like to display  breadcrumb for Sub-categories.

I tried 2 different code to display the breadcrumb.

1) 

   <?php echo $record['breadcrumb']; ?>

2)  can not display full and correct breadcrumb.

<?php foreach ($categoryRecords as $record): ?>
<?php if ( $record['num'] != @$selectedCategory['num'] ): ?>
<a href="/<?php echo strtolower($record['url']); ?>/">
<?php endif ?>
<?php echo $record['name']; ?>
<?php if ( $record['num'] != @$selectedCategory['num'] ): ?>
</a>
<?php endif ?>
<?php endforeach ?>

2 problems:

1) I have 3 different levels. If I use above code.   It only one URL for the breadcrumb.   How can I give the level its own level url?   

     Ex :  Home URL > level 1 URL > level 2 URL > detail product URL.

     All have it's own level URL.

2) The breadcrumb on filed is system field.  

    Between different level.  The default mark is "："  Colon.     Can I change it to ">"  arrow?  

Thanks!

Jac