Add attributes to drupal breadcrumb links.

If you for any reason would like to add attributes to your breadcrumb links, this is how i did it; instead of

print $breadcrumb;

i did

print str_replace('">', '" target="_top">', $breadcrumb);

I needed this because i created a template with frames for external links. The top of the frame uses the standard "header" region, the bottom uses an external link. This snippet makes sure that when i click on a breadcrumb link, it will open in the "_top". You could use this to add any odd attribute though. I welcome cleaner methods, this worked for me though. It took me a while to figure this out so i thought i'd share.