zwol | dear lazyweb,

exactly which circle of browser compatibility hell will I be doomed to if I make up my own DIV attributes in a (machine generated) HTML page for the benefit of the Javascript program inside? I mean, like, <div id="foo" xprev="bar" xnext="quux"> instead of having on-the-side associative arrays. (Does Javascript even have associative arrays? It must, but all the documentation I can find online fails to inform, and fails to inspire confidence in what little information it does provide.)