Take a look at Rdio.com and look around. When changing page the part after the /#/ changes to what page your on.

Example: www.rdio.com/#/about

I would like to do the same. I have been trying to find out how to do this for ages and cannot find anything to help me. I have just started using ajax.

Can anyone just give the names of what i need to look at to find out?
or can you give me a bit of example code?