Can Re-write / Modify URL with javascript / Jquery after page load

Question

Is it possible to re-write URL without reloading the page via jQuery/Javascript?

Let's say you have the following URL:

http://stackoverflow.com/questions/ask

can we append the value: /pId=XYZ

So you can get

http://stackoverflow.com/questions/ask/pId=XYZ

Is this possible?

Answer 1

All you can change without redirecting is the hash part of url:

document.location.hash = "whatever";