/*jslint browser: true*/
/*global $: false, ActiveXObject: false */
var flashBlockDetect = function (callbackMethod) {
    'use strict';
    var return_value = 0,
        embed_length,
        object_length;
    if (navigator.plugins["Shockwave Flash"]) {
        embed_length = $('embed').length;
        object_length = $('object').length;
        if (embed_length > 0 || object_length > 0) {
            /* Mac / Chrome using FlashBlock + Mac / Safari using AdBlock */
            $('object, embed').each(function () {
                if ($(this).css('display') === 'none') {
                    return_value = 2;
                }
            });
        } else {
            /* Mac / Firefox using FlashBlock */
            if ($('div[bginactive]').length > 0) {
                return_value = 2;
            }
        }
    } else if (navigator.userAgent.indexOf('MSIE') > -1) {
        try {
            new ActiveXObject('ShockwaveFlash.ShockwaveFlash');
        } catch (e) {
            return_value = 2;
        }
    } else {
        /* If flash is not installed */
        return_value = 1;
    }
    if (callbackMethod && typeof callbackMethod === "function") {
        callbackMethod(return_value);
    } else {
        return return_value;
    }
};