Testing if an item exists in a list

To check if an item exists in a list in R, use %in%. This is handy for handling option lists inputs for a function.

"item" %in% list

A unified HTML5 audio player

aTagPlayer is an HTML5+JS+CSS3 audio player that adds audio players "in-place".
Check it out at http://ccrma.stanford.edu/~hskim08/atagplayer/.