List_cats

Hi, currently my site lists all categories in alphabetical order which is cool. But I would like my categories to be listed by Category with Child Categories listed under their respective parent Category. Currently I have it like this:

‘ <?php list_cats(0, ”, ‘name’, ‘asc’, ”, 1, 0, 0, 1, 1, 1, 0,”,”,”,”,”) ?> ‘

I have gone through the codex and found this page:
http://codex.wordpress.org/Template_Tags/list_cats

But I am not understanding it 100%, any help is appreciated.