how to build a codeigniter like ***navigation bar***(not menu)?

[eluser]Met[/eluser]
known as breadcrumbs.

some functions are available ~
http://ellislab.com/forums/viewthread/93588/
http://ellislab.com/forums/viewthread/99982/

for one of my projects i simply passed a view an array lke this:

Code:

$data['breadcrumbs'] = array('site/index' => 'Home', 'site/about-us' => 'About Us', 'site/details' => 'Details');

// in my view:
<div class="breadcrumbs">
foreach($breadcrumbs as $bread => $crumb) {
    echo anchor($bread, $crumb) . ' > ';
}
</div>

$key is the function, $value is the text displayed in the crumb.

not particularly extendible or fancy, but it did the job for said project.