title: Ajax enabled search for products with multiple criteria
body: <p>want to have search functionality as on this website</p>
  
  <p><a href="http://www.carwale.com/new/search.aspx#budget=6&amp;budget=8&amp;fuel=2" rel="nofollow">http://www.carwale.com/new/search.aspx#budget=6&amp;budget=8&amp;fuel=2</a></p>
  
  <p>here whenever the user filters search(checks any checkbox), it updates results accordingly,
  that can be understood as an ajax filter.</p>
  
  <p>But at the same time, the query string also reflects for the change,
  which helps the user to bookmark the filter search for later reference.</p>
  
  <p>changing it through asp.net/javascript may cause the page to reload..</p>
  
  <p>any hint or suggestions on implementing the same would be really helpful..</p>