Doors and Security - Specifically, how to lock a sliding door

[Amiga]

Greetings from a BYC newbie!

I am preparing for the arrival of several runner ducklings. I am designing their shelter, and have decided (unless I get more pertinent information) to give them a sliding wooden door into their Little Fort Knox pen.

I want to be able to slide the door as I stand outside their pen. I also want to be able to lock the sliding door from outside the pen.

Since I don't have pictures at this point (haven't made a really nice drawing yet, either), I am simply looking for some information about how one would lock a door (like a pop door) that slides sideways instead of up and down. It is probably extremely simple, but I have duck house designer's block, or something

 

[saddina]

http://images.google.com/imgres?imgurl=http://www.hardwarestore.com/media/product/125827_front200.jpg&imgrefurl=http://hardware.hardwarestore.com/73-436-barn-door-pulls-and-latches.aspx&usg=__HFuLSkGjOsU_94EYLRNvR9Pdotw=&h=200&w=200&sz=3&hl=en&start=28&um=1&tbnid=yfXxgWOg9R6vyM:&tbnh=104&tbnw=104&prev=/images%3Fq%3Dstall%2Blatches%26ndsp%3D20%26hl%3Den%26rls%3Dcom.microsoft:en-us:IE-SearchBox%26rlz%3D1I7ADBS_en%26sa%3DN%26start%3D20%26um%3D1

This, use a padlock to keep racoons out.

 

[Amiga]

Ah! Yes!!!

Thanks so much!