title: Change the get parameters in the address bar in jquery
body: <p>when you search on yelp, by adding additional search parameters the page does not reload. I think the results are changed based on ajax, however when you click on one of the restaruants and go back to the previous page. All of the parameters are still there. I noticed the address bars change as the parameters change. I found 
  <a href="http://www.asual.com/jquery/address/" rel="nofollow noreferrer">http://www.asual.com/jquery/address/</a> but it seems to add # at the end of the url. Is there a way to make it simply like index.php?xyz=1 without refreshing the page</p>