Layers seemed easier than DOM...until you encountered the bug in Netscape 4 where you couldn't have two layers loading at the same time. I worked on Netcaster for a while, and we had to have a queue of (layer,url) pairs; when each layer was finished loading, its onLoad handler would notify the queue to load the next layer.
Layers seemed easier than DOM...until you encountered the bug in Netscape 4 where you couldn't have two layers loading at the same time. I worked on Netcaster for a while, and we had to have a queue of (layer,url) pairs; when each layer was finished loading, its onLoad handler would notify the queue to load the next layer.