I'd like to include a map on my site which lets viewers click "on" and "off" what they want to view on it, like an adobe pdf with clickable layers.
For example, the original image will show every detail, then, given the option to only view one type of data portrayed on the map, one could click something and have only that information displayed.
How would I achieve this effect?
Flash Catalyst would be your best bet.
But to do it in DW, you could always put all your individual pieces of info on their own layers and then use the Show/Hide Layers or Show/Hide Images behaviors from the Behaviors Panel to turn layers or images on and off.
Adobe Community Professional: Dreamweaver
Northern British Columbia Adobe Usergroup: Manager