function change(url) {
    if (url == document.location.href){
        kango.console.log('page is ' + url);
        return;
    } else {
        kango.console.log('New page is ' + document.location.href);
        clearInterval(timer);
        time();
    }
}

function time(){
    timer = setInterval(change, 1000, document.location.href);
}

if(window == window.top) {
    time();
}