Not sure entirely what this does, but keeping it anyway.

key.js

$(document).ready(function(){

    // Disable page scrolling
    $("html").css({'overflow': 'hidden'});

    // Block arrow keys scrolling
    document.onkeydown = function(e) {
        if (!e) e = window.event;
        if(e){ // IE8 and earlier
            if(e.keyCode){
                var k  = e.keyCode;
            }
        }
        else if(e.which){ // IE9/Firefox/Chrome/Opera/Safari
            var k = e.which;
        }
        if(k >= 37 && k <= 40){
            return false;
        }
    }

    // For QA purpose
    var queryParam = location.search.substr(location.search.indexOf("?")+1).split('&')[0].split('=');
    if(queryParam[0] == 'pausestitial') {
        setTimeout(function() { SugarAds.dfp._stitialPauseFuse(); }, (queryParam[1]) ? parseInt(queryParam[1])+parseInt(stitialStartDelay) : defaultPauseSeconds);
    }
});