Need some help in buttons

Hey there this is my first post XD =) ,

i need some help … i want to create two as2 the first one is when i hold the button “Down”
and the second one is when i only press the button “Down” once ?

this part of the as2 :proud:

if(Key.isDown(Key.DOWN)){
_root.guy.gotoAndPlay(3)
}