, Matthew Gray


OverlaySlide takes an image and draws it. It then takes another image, and from left to right, draws it on top of the first image, either in a narrow band (as above) or in a solid sweep. Transparent images enable you to do some really cool stuff with this.

OverlaySlide takes a number of parameters:

Speed (1-1000)
Higher is faster. About 20 is what you typically want.
The base image
The overlayed image
wid (optional)
If set, this is the width, in pixels of the band of the overlay to use. A value of 12 is used above.