function checkRedirect(redirectUrl) {
    var agent = navigator.userAgent.toLowerCase();
    var scrWidth = screen.width;
    var scrHeight = screen.height;
    // The document.documentElement dimensions seem to be identical to
    // the screen dimensions on all the mobile browsers I've tested so far
    var elemWidth = document.documentElement.clientWidth;
    var elemHeight = document.documentElement.clientHeight;
    // We need to eliminate Symbian, Series 60, Windows Mobile and Blackberry
    // browsers for this quick and dirty check. This can be done with the user agent.
    var otherBrowser = (agent.indexOf("series60") != -1) || (agent.indexOf("symbian") != -1) || (agent.indexOf("windows ce") != -1) || (agent.indexOf("blackberry") != -1);
    // If the screen orientation is defined we are in a modern mobile OS
    var mobileOS = typeof orientation != 'undefined' ? true : false;
    // If touch events are defined we are in a modern touch screen OS
    var touchOS = ('ontouchstart' in document.documentElement) ? true : false;
    // iPhone and iPad can be reliably identified with the navigator.platform
    // string, which is currently only available on these devices.
    var iOS = (navigator.platform.indexOf("iPhone") != -1) ||
            (navigator.platform.indexOf("iPad") != -1) ? true : false;
    // If the user agent string contains "android" then it's Android. If it
    // doesn't but it's not another browser, not an iOS device and we're in
    // a mobile and touch OS then we can be 99% certain that it's Android.
    var android = (agent.indexOf("android") != -1) || (!iOS && !otherBrowser && touchOS && mobileOS) ? true : false;

    // Validate mobile device
    if ((iOS || mobileOS || touchOS || android) && (location.search != "?fullView=1")) {
        window.location = redirectUrl;   
    }
}