How to remove the title in the header to put a logo instead

[lona79]

using the default theme as my example, that would be done by changing:

Code:

<a class="logo" href="<?php get_site_url(); ?>"><?php get_site_name(); ?></a>

to:

Code:

<a class="logo" href="<?php get_site_url(); ?>"> (whatever is here will be the link, so nothing if you want) </a>

ok, but where I put my image file link ?

Sorry for my bad english ...