What is it with js libraries using data- tags without any kind of "namespacing". For example this library uses data-intro which could easily clash with other things in future.
Would it not be good for everyone to be a good citizen and instead do things like data-ch-intro? Just a few characters from your project name to reduce the chances of clashes.
Perhaps there's even use for a little database that keeps track of the different data attributes used by different libraries so that authors could easily find out if their name of choice will collide with someone else's, at least as a forewarning to its user about possible incompatibilities.
Maximum flexibility for the end-user but a bit of a PITA for library developers.
dans:chardin="http://heelhook.github.com/chardin.js/
I have a feeling that web community is not ready for something like this, maybe in a few years.