miketaylr/jQuery-html5-placeholder — pull request #23 by swieton (2012-08-24 18:52:34+00:00)
Title: Don't add a placeholder shim to inputs that already have it

I've made a very simple update which stores a reference to the placeholder in the data area of the input. This lets us check to see if the shim has already been added and in that case, do nothing.