I have a calendar and right now, I'm able to use Overlib to draw a rectangle
across the Calendar from Sunday to Saturday. If I add another rectangle, the
first rectangle will go away, likely because it's reusing the overDiv layer
again and again. How can I get around this? Is there a better way in which I
can draw a colored layered at a set point on the screen and stretch
horizontally or vertically without overlib?