Test for iOS devices

iOS_test.js

/* Test for iOS device, and insert class on body tag. You can't upload files
 * on iOS devices, but you can on Android devices, so using mobile style sheets
 * won't work for showing and hiding certain content during the sign up process. */
(function isIOS() {
    if (/iPhone|iPod|iPad/i.test(navigator.userAgent)) {
        $('html').addClass("ios");
    } else {
        $('html').addClass("no-ios");
    }
})();