Per client's request we're building an 'e-zine' with a page-flip effect (don't ask), and turn.js appears to be about the only game in town that doesn't rely on flash. The developer hasn't updated it since 2012. I've been adapting this sample to client's more graphics-heavy needs. One thing I'd like to get rid of is an old, since-deprecated modernizr 'yepnope' function (to conditionally load scripts for IE8/other) that ultimately calls a custom function, loadApp. I'm not building against IE8, so I do not need the yepnope thing at all, but I do need to call the loadApp function

        yepnope({
            test : Modernizr.csstransforms,
            yep: ['scripts/turn.js'],
            nope: ['scripts/turn.html4.min.js', 'styles/jquery.ui.html4.css', 'styles/html4.css'],
            both: ['scripts/custom.js', 'styles/jquery.ui.css', 'styles/styles.css'],
            complete: loadApp
        })

I put the 'yep' and 'both' scripts and css into the head, and tried variously replacing the whole yepnope function with just loadApp(); replacing every yepnope option with "null" (e.g. "test: null, yep: null" etc) leaving "complete: loadApp" and so on, but modernizr.js (incidentally I've never used previously) demands I keep it intact.

Turns out modernizr was only being used for the csstransforms test (AFAICT). I ditched it all, and it appears to work... dare I say... better.