absStartScroll Library Method
Short Description: Set absolute scroll start of transition
Signature: t.absStartScroll (scrollPosition)
Class: transition Class
Makes the transition play while the page is scrolled down.
The transition will start playing when the page is scrolled
down to or below the given scrollPosition.
scrollPosition gives the number of pixels
the page is scrolled down. 0 means that the page has
not yet been scrolled down.
Usually this is used in combination with distance.
absStartScroll, startScroll, and
distance can not be used in combination with
startTime, absStartTime, or
Also if absStartScroll
and startScroll are used within a single
transition only the last one becomes effective.