how to redirect to home page
document.location.href="/";
document.location.href="/";
or
window.location.href = "/";
According to the W3C, they are the same. In reality, for cross browser safety, you should use window.location rather than document.location.
See: http://www.w3.org/TR/Window/#window-location
(Note: I copied the difference explanation above, from this question.)