There are no native browser methods for skewing images, so you'll need to use the HTML5 canvas to accomplish it.
Edit: Note, there *may* be a way to do it with CSS3, but I've not figured out how. :)
I put together a small jsFiddle that I think does what you want. I wasn't sure how much skew you're looking for, but looked to be roughly 20%.
Note, I didn't do any cross browser testing on this (works in Chrome though).