function navPosition() {
  if ($(window).scrollTop() > $("#nav_wrapper").offset( { scroll: false } ).top-29){
     $("#nav").css({
       "position": "fixed",
       "top": "29px",
       "width": "50%",
      "z-index": "500"
      });
  } else if ($(window).scrollTop() <= $("#nav_wrapper").offset( { scroll: false } ).top){
     $("#nav").css({
       "position": "relative",
       "top": "0",
       "width": "100%"
      });
  }
}

$(document).ready(function(){
  
  $('.features').kwicks({  
      max : 660,  
      spacing : 0
  });  
  
  $(window).scroll(navPosition);
  navPosition();
});


$(document).ready(function(){
  $(".scrollTo").click(function() {
    $.scrollTo( $("#"+this.innerHTML.toLowerCase()), 800 );
    return false;
  });
  $("#nav a").click(function() {
    $.scrollTo( $("#"+this.innerHTML.toLowerCase()), 800 );
    return false;
  });
  $("#nav a").hover(function() {
    left = $(this).offset( { scroll: false } ).left;
    width = $(this).width();
    mid = left+(width/2);
    hov = $("#nav_hover");
    newHov = $("#nav_hover").clone().insertBefore($(this));
    hov.remove();
    $(newHov).css("display", "block");
    $(newHov).css("position", "absolute");
    $(newHov).css("left", (width));
    $(newHov).css("top", -22);
  },
  function() {  
    $("#nav_hover").css("display", "none");
  });
});


// when the DOM is ready...
$(document).ready(function () {

  var $panels = $('#slider .scrollContainer > div');
  var $container = $('#slider .scrollContainer');

  // if false, we'll float all the panels left and fix the width 
  // of the container
  var horizontal = true;

  // float the panels left if we're going horizontal
  if (horizontal) {
    $panels.css({
      'float' : 'left',
      'position' : 'relative' // IE fix to ensure overflow is hidden
    });

    // calculate a new width for the container (so it holds all panels)
    $container.css('width', $panels[0].offsetWidth * $panels.length);
  }

  // collect the scroll object, at the same time apply the hidden overflow
  // to remove the default scrollbars that will appear
  var $scroll = $('#slider .scroll').css('overflow', 'hidden');

  // apply our left + right buttons
  $scroll
    .before('<img class="scrollButtons left" src="images/scroll_left.png" />')
    .after('<img class="scrollButtons right" src="images/scroll_right.png" />');

  // handle nav selection
  function selectNav() {
    $(this)
      .parents('ul:first')
        .find('a')
          .removeClass('selected')
        .end()
      .end()
      .addClass('selected');
  }

  $('#slider .navigation').find('a').click(selectNav);

  // go find the navigation link that has this target and select the nav
  function trigger(data) {
    var el = $('#slider .navigation').find('a[href$="' + data.id + '"]').get(0);
    selectNav.call(el);
  }

  if (window.location.hash) {
    trigger({ id : window.location.hash.substr(1) });
  } else {
    $('ul.navigation a:first').click();
  }

  // offset is used to move to *exactly* the right place, since I'm using
  // padding on my example, I need to subtract the amount of padding to
  // the offset.  Try removing this to get a good idea of the effect
  var offset = parseInt((horizontal ? 
    $container.css('paddingTop') : 
    $container.css('paddingLeft')) 
    || 0) * -1;


  var scrollOptions = {
    target: $scroll, // the element that has the overflow

    // can be a selector which will be relative to the target
    items: $panels,

    navigation: '.navigation a',

    // selectors are NOT relative to document, i.e. make sure they're unique
    prev: 'img.left', 
    next: 'img.right',

    // allow the scroll effect to run both directions
    axis: 'xy',

    onAfter: trigger, // our final callback

    offset: offset,

    // duration of the sliding effect
    duration: 500,

    // easing - can be used with the easing plugin: 
    // http://gsgd.co.uk/sandbox/jquery/easing/
    easing: 'swing'
  };

  // apply serialScroll to the slider - we chose this plugin because it 
  // supports// the indexed next and previous scroll along with hooking 
  // in to our navigation.
  $('#slider').serialScroll(scrollOptions);

  // now apply localScroll to hook any other arbitrary links to trigger 
  // the effect
  $.localScroll(scrollOptions);

  // finally, if the URL has a hash, move the slider in to position, 
  // setting the duration to 1 because I don't want it to scroll in the
  // very first page load.  We don't always need this, but it ensures
  // the positioning is absolutely spot on when the pages loads.
  scrollOptions.duration = 1;
  $.localScroll.hash(scrollOptions);

});