Changing default wp_nav_menu arguments?

Hello everyone,

I have been searching for this for days without any luck.. hopefully someone can help me here.

Im building a plugin that modifies the way the nav menu is shown. I need to use a custom walker, but since this is a plugin, i want it to work out of the box. I dont want users to have to be editing their theme files to change the walker argument. So, my question is: is there any way to change the default walker being used by wp_nav_menu ,. or maybe a filter to call a custom wp_nav_menu with the new walker?

Thanks in advance,
Bruno

PS: i misposted this on the plugins forum. Hopefully someone can delete it from there?

[moderator note – yep, got it – all gone 🙂 ]