In my project, say on click on one button, I need to show a new page (like ahref) ..

So I have written a below click event of the button in one JS file ...
this.body.on('click', function(){window.location.href="overhaul_inshop.html"});

But, I read that as per Sencha norms, one should have only main HTML file and other files should be only JS ...

Even in my project, I have overhaul_inshop.js file which does all operations. But, how can I give the linking now to that JS ... If it is HTML, I can call like above code ... pls advice . Thanks.