Orbit/app/assets/javascripts/side_bar_history.js

$(function () { 
  $('#back_sidebar a, #back_main a.nav').live('click',  
    function () {  
      $.getScript(this.href);
			history.pushState(null, document.title, this.href);
			history_edited = true;
      return false;
    }  
  );

  $('#back_main a.reload').live('click',
    function () { 
      $.getScript(this.href);
			history.replaceState(null, document.title, this.href);
			history_edited = true;
      return false;
    }
  );

	$('.form').live('submit', function () { 
    $.post(this.action, $(this).serialize(), null, 'script');
		history_edited = true;
    return false;
  });

	$(window).bind("popstate", function () { 
		if (history_edited) { 
    	$.getScript(location.href);  
		}
  });
});