fancy scroll stuff and tiny js roundup/cleanup

docs/assets/js/application.js

@@ -1,6 +1,6 @@
 // Javascript to toggle the dropdowns
 $(document).ready(function(){
-  // Dropdowns
+
   $("body").bind("click", function(e) {
     $("ul.menu-dropdown").hide();
     $('a.menu').parent("li").removeClass("open").children("ul.menu-dropdown").hide();
@@ -21,4 +21,53 @@ $(document).ready(function(){
     $parentSiblings.removeClass("open");
     return false;
   });
+
+  //table sort example
+  $("#sortTableExample").tablesorter( {sortList: [[1,0]]} );
+
+  //add on
+  $('.add-on :checkbox').click(function() {
+    if ($(this).attr('checked')) {
+      $(this).parents('.add-on').addClass('active');
+    } else {
+      $(this).parents('.add-on').removeClass('active');
+    }
+  });
+
+
+  //scroll spyer
+  var activeTarget,
+      $window = $(window),
+      position = {},
+      nav = $('body > .topbar li a'),
+      targets = nav.map(function () {
+        return $(this).attr('href');
+      }),
+      offsets = $.map(targets, function (id) {
+        return $(id).offset().top;
+      });
+
+
+  function setButton(id) {
+    nav.parent("li").removeClass('active');
+    $(nav[$.inArray(id, targets)]).parent("li").addClass('active');
+  }
+
+  function processScroll(e) {
+    var scrollTop = $window.scrollTop() + 10, i;
+    for (i = offsets.length; i--;) {
+      if (activeTarget != targets[i] && scrollTop >= offsets[i] && (!offsets[i + 1] || scrollTop <= offsets[i + 1])) {
+        activeTarget = targets[i];
+        setButton(activeTarget);
+      }
+    }
+  }
+
+  nav.click(function () {
+    processScroll();
+  });
+
+  processScroll();
+
+  $window.scroll(processScroll);
 });