// 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="/image/blank.gif" />')
  .after('<img class="scrollButtons right" src="/image/blank.gif" />');

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

$('#slider').css('visibility', 'visible');
$('.cnt_video').css('visibility', 'visible');
highlightButton('news_1');

$('#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);
  highlightButton(data.id);
  displayCaption(data.id);
  playerstate = jQuery("#youtube-player-container").tubeplayer("data");
  if(playerstate.state == 1 && data.id != "news_4") {
    jQuery("#youtube-player-container").tubeplayer("pause");
  }
  clearInterval(cycleTimer);
  cycleTimer = setInterval(function () { $scroll.trigger('next'); }, 8000);
}

/* Button */
function highlightButton(id) {
	/* Change this value if number of news changes !! */
	for (c=1;c<=4;c++) {
		var nav = 'news_'+c;
		if (nav != id) {
			$("#navi_"+nav+" a.button").css({'background': 'none'});
			$("#navi_"+nav+" a.button span").css({'background': 'none'});
		}
		else {
			$("#navi_"+nav+" a.button").css({'background': 'transparent url(../image/button_right_red.png) no-repeat scroll top right'});
			$("#navi_"+nav+" a.button span").css({'background': 'transparent url(../image/button_left_red.png) no-repeat'});
		}
	}
}

/* Caption */
function displayCaption(id) {
  if(!id) id='news_1';
  dif = parseFloat($('.scroll').css('height')) - parseFloat($('#'+id+' .caption').css('height'));
  $('#'+id+' .caption').css({'top':dif+'px', 'position': 'absolute'});
}

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

// 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);
//auto scroll 

cycleTimer = setInterval(function () { $scroll.trigger('next'); }, 8000);

// 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);

});