function addSwipeListener(el, listener)
{
 var startX;
 var dx;
 var direction;

 function cancelTouch()
 {
  el.removeEventListener('touchmove', onTouchMove);
  el.removeEventListener('touchend', onTouchEnd);
  startX = null;
  startY = null;
  direction = null;
 }

 function onTouchMove(e)
 {
  if (e.touches.length > 1)
  {
   cancelTouch();
  }
  else
  {
   dx = e.touches[0].pageX - startX;
   var dy = e.touches[0].pageY - startY;
   if (direction == null)
   {
    direction = dx;
   }
   else if ((direction < 0 && dx > 0) || (direction > 0 && dx < 0) || Math.abs(dy) > 400)
   {
    cancelTouch();
   }
  }
 }

 function onTouchEnd(e)
 {
   cancelTouch();
  if (Math.abs(dx) > 30)
  {
    listener({ target: el, direction: dx > 0 ? 'right' : 'left' });
    dx = 0;
  }
 }

 function onTouchStart(e)
 {
    // e.preventDefault();
    e.stopPropagation();
  if (e.touches.length == 1)
  {
   startX = e.touches[0].pageX;
   startY = e.touches[0].pageY;
   el.addEventListener('touchmove', onTouchMove, false);
   el.addEventListener('touchend', onTouchEnd, false);
  }
 }

 el.addEventListener('touchstart', onTouchStart, false);
}


function swipePageChange(e) {
    if(e.direction == "left") {
        $('#slider .scroll').trigger( 'next' );
    }
    if(e.direction == "right") {
       $('#slider .scroll').trigger( 'prev' );
    }
}



// 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);
		addSwipeListener(document.getElementById("box"), function(e) {swipePageChange(e);});
		$("a.imagezoom").fancybox({
			'titleShow'		: false,
			'transitionIn'	: 'elastic',
			'transitionOut'	: 'elastic'
		});
		
});