title: history.go(-1) and UpdatePanel issue
body: <p>I have an UpdatePanel and inside of it there is a GridView and some controls so the user can type in some searching criteria.</p>
  
  <p>On the GridView there's one column with a link to another page and in that second page there is a link that does a simple history.go(-1).</p>
  
  <p>The problem is that after I go back to the original search results page, the selected search criteria and the grid are empty. I need it to be in the same state as it was before leaving it.</p>
  
  <p>Is there a way to acomplish this?</p>
  
  <p>Thank you. </p>