Cant get it to loop

Alright this is a script i am working on and trying to get it to run and check for a infinite number of times untill i decide to stop it.

$pixel = PixelSearch(395, 63, 430, 81, 0XC60000)
if IsArray($pixel) = True    Then
    WinWaitActive("NotePad")
    Send("{F3}")

endif

i cant seem to find a way to create a loop that will keep checking.

basicly if its true i want it to execute the script. But if it returns a False value i want it to test it again.