How to refresh content when using CrossroadJS and HasherJS with KnockoutJS - ajax

Question

I was following Lazy Blogger for getting started with routing in knockoutJS using crossroads and hasher and it worked correctly.
Now I needed to refresh the content using ajax for Home and Settings page every time they are clicked. So I googled but could not find some useful resources. Only these two links
Stack Overflow Here I could not understand where to place the ignoreState property and tried these. But could not make it work.
define(["jquery", "knockout", "crossroads", "hasher"], function ($, ko, crossroads, hasher) {
return new Router({
routes:
[
{ url: '', params: { page: 'product' } },
{ url: 'log', params: { page: 'log' } }
]
});
function Router(config) {
var currentRoute = this.currentRoute = ko.observable({});
ko.utils.arrayForEach(config.routes, function (route) {
crossroads.addRoute(route.url, function (requestParams) {
currentRoute(ko.utils.extend(requestParams, route.params));
});
});
activateCrossroads();
}
function activateCrossroads() {
function parseHash(newHash, oldHash) {
//crossroads.ignoreState = true; First try
crossroads.parse(newHash);
}
crossroads.normalizeFn = crossroads.NORM_AS_OBJECT;
hasher.initialized.add(parseHash);
hasher.changed.add(parseHash);
hasher.init();
$('a').on('click', function (e) {
crossroads.ignoreState = true; //Second try
});
}
});
Crossroads Official Page Here too I could not find where this property need to be set.
If you know then please point me to some url where I can get more details about this.