// Slide timer - color variation of headerText
// Time per slide is total presentation length divided by number of slides
// except start and end slide.
// Slide timer - color variation of headerText
// Time per slide is total presentation length divided by number of slides
// except start and end slide.
var slideStart, timerMSec;
// Called when the document has been loaded.
var slideStart, timerMSec;
// Called when the document has been loaded.