On my BeagleBone Black I use Debian 7.4 with LXDE.  every boot comes with

On my BeagleBone Black I use Debian 7.4 with LXDE.
every boot comes with a login screen for entering the user name and password, now I want to go directly to the desktop without a user name or password to be enter. how do you do that? I have tried a few things without sucses.

greeting
Matthijs (sorry for bad english)

Thanks for the help, it works great!