// 切换logo
var topNavLogo = $("#top-nav-logo");
var locations = window.location;
var imgUrls = '/image?image=/home/img/index/';
var result = '';
if (locations.pathname.indexOf('tianjin') !== -1) {
    changeLogo('tianjinlogo.png');
}
else if (locations.pathname.indexOf('business') !== -1) {
    changeLogo('shangwulogo.png');
}
else if (locations.pathname.indexOf('decorate') !== -1) {
    changeLogo('logo_black.png');
    clickLogo();
}
else if (locations.pathname.indexOf('science') !== -1) {
    changeLogo('logo_black.png');
    clickLogo();
}
else if (locations.pathname.indexOf('homing') !== -1) {
    changeLogo('logo_black.png');
    clickLogo();
}
else {
    changeLogo('logo.png');
    clickLogo();

}

function changeLogo(img) {
    var url = imgUrls + img;
    result += "<img class='imagePic' src=" + url + ">";
    topNavLogo.empty().append(result);
}

//点击导航logo跳转首页事件
function clickLogo() {
    topNavLogo.unbind('click').bind('click', function () {
        if (locations.href.indexOf("english") == -1) {
            locations.href = "/";
        } else {
            locations.href = "/english";
        }
    })
}