Sprites

GIcon() property .sprite was discovered in the api code two months ago but no-one has presented any use for that. It is an object with two properties .image and .top.

sprite.image is uri of an image and sprite.top sets its style.top relative to the marker container.

You can have a set of markers in a single image file and bring one icon at a time visible by .top.

Hosting a large set of markers is not fun. A single file will do now. Also you don't have to preload separate image files anymore.

See a demo.

Update:

There are also 'width' and 'height' properties. Those can be used if you did not specify GIcon.size. You can have different sized icon images in a single sprite. Thanks Mike.