(function($) {
            $.fn.changeBackGround = function(gameCode) {
                var divMain = $('#div_main');
                var banner = $('#img_gamePic');
                if (gameCode == '013') {
                    changeBackgroundImg(divMain, 'class', 'main_wowus');
                    changeBackgroundImg(banner, 'src', '/images/wowuspro_banner.jpg');
                } else if (gameCode == '019') {
                    changeBackgroundImg(divMain, 'class', 'main_woweu');
                    changeBackgroundImg(banner, 'src', '/images/woweupro_banner.jpg');
                } else if (gameCode == '001') {
                    changeBackgroundImg(divMain, 'class', 'main_ffxi');
                    changeBackgroundImg(banner, 'src', '/images/ffxi_banner.jpg');
                } else if (gameCode == '100') {
                    changeBackgroundImg(banner, 'src', '/images/ff14.jpg');
                }else if (gameCode == '083' || gameCode == '087') {
                    changeBackgroundImg(divMain, 'class', 'main_aion');
                    changeBackgroundImg(banner, 'src', '/images/aionpro_banner.jpg');
                } else if (gameCode == '003') {
                    changeBackgroundImg(banner, 'src', '/images/eve.jpg');
                } else if (gameCode == '002') {
                    changeBackgroundImg(banner, 'src', '/images/eq2.jpg');
                } else if (gameCode == '007') {
                    changeBackgroundImg(banner, 'src', '/images/gw.jpg');
                } else if (gameCode == '012') {
                    changeBackgroundImg(banner, 'src', '/images/l2.jpg');
                } else if (gameCode == '011') {
                    changeBackgroundImg(banner, 'src', '/images/swg.jpg');
                } else if (gameCode == '092') {
                    changeBackgroundImg(banner, 'src', '/images/sto_eu_banner.gif');
                } else if (gameCode == '091') {
                    changeBackgroundImg(banner, 'src', '/images/sto_banner.gif');
                }
                else if (gameCode == '118') {
                    changeBackgroundImg(banner, 'src', '/images/swtor2.gif');
                }
                else if (gameCode == '130') {
                    changeBackgroundImg(banner, 'src', '/images/swtor2.gif');
                }
                else if (gameCode == '010') {
                    changeBackgroundImg(banner, 'src', '/images/account_short.gif');
                }
            }

            changeBackgroundImg = function(dom, className, classValue) {
                if ($(dom).attr(className) != undefined) {
                    $(dom).attr(className, classValue);
                }
            }
        })(jQuery)