SHARE - Event handler for page refresh and back button

    <input type="hidden" id="refreshed" value="no"/>
    <script type="text/javascript">
      onload=function(){
        var e=document.getElementById("refreshed");
        if(getCookie('location_url')==location.href){
          e.value="no";
        }
        setTimeout('setCookie(\'location_url\',location.href);', 100)
        if(e.value=="no"){ //page loaded on the first time
          e.value="yes";
        }else{ //page refreshed or back to this page
          e.value="no";
          //run your code for the event here
          e.value="yes";
        }
      }
      onkeypress=function(event){ //page refreshed
        if(event.keyCode==116){
          var e=document.getElementById("refreshed");
          e.value="no";
        }
      }
      onkeydown=function(event){ //page refreshed
        if(event.ctrlKey && event.keyCode == 82){
          var e=document.getElementById("refreshed");
          e.value="no";
        }
      }
    </script>