Normalized hide address bar for iOS & Android (JSLint compliant)

hideaddrbar.js

/*jslint browser: true, indent: 4 */
/*
  * Normalized hide address bar for iOS & Android
  * (c) Scott Jehl, scottjehl.com
  * MIT License
*/
(function (win) {
    'use strict';
    var doc = win.document,
        scrollTop = 1,
        getScrollTop,
        bodycheck;

    // If there's a hash, or addEventListener is undefined, stop here
    if (!location.hash && win.addEventListener) {

        //scroll to 1
        window.scrollTo(0, 1);
        getScrollTop = function () {
            return ((((win.pageYOffset || doc.compatMode === "CSS1Compat") && doc.documentElement.scrollTop) || doc.body.scrollTop) || 0);
        };

        //reset to 0 on bodyready, if needed
        bodycheck = setInterval(function () {
            if (doc.body) {
                clearInterval(bodycheck);
                scrollTop = getScrollTop();
                win.scrollTo(0, scrollTop === 1 ? 0 : 1);
            }
        }, 15);

        win.addEventListener("load", function () {
            setTimeout(function () {
                //at load, if user hasn't scrolled more than 20 or so...
                if (getScrollTop() < 20) {
                    //reset to hide addr bar at onload
                    win.scrollTo(0, scrollTop === 1 ? 0 : 1);
                }
            }, 0);
        });
    }

}(this));