droping Blinking PM popup

[The slime]

I saw this on a vbulletin forum ... when you recieve a pm its drops from the top of the page and sits bellow the navbar and it blinks.


and when the message is read its goes away.

--------------- Added [DATE]1250904170[/DATE] at [TIME]1250904170[/TIME] ---------------

solved! if you like to know how i did it let me know.But I could not figure out how it moves down the screen though.