Facebook Update Status PHP Script Needed

I need a simple function written in PHP to post "status" updates to my Facebook account (when user id and password are entered). The basic idea is that I want to be able to post my Facebook update without going to the Facebook site. Please be familiar with Facebook and what I'm talking about with regards to "status update". A great job done on this project will result in more work of this nature. Thanks and I look forward to hearing from you!