[MikeLac]

Originally Posted by audis3

But when you load an image and then another, the first image is still cached no matter if you have loaded another one.

For example, when you load the first page then it is cached.
When you load another page and then go back to the home page then it is still cached(if the web site uses cache).

I realize that.

But what I am getting at is: If it has to go through 20 different backgrounds before they are all cached, then the user will realize that this Style is way to slow and switch to something else before all the backgrounds have a chance to be cached. Because it would have to go through 20 different backgrounds before a background is actually used twice. If it rotates between 3 backgrounds, then it won't take long for them to be cached. It all depends on how many backgrounds that it rotates.