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

	// Start: Planai script mofification 
	
	// Beinhaltet aktuellen Tab
	var current_tab;
	// Init: Variable für ausgewählten Tab setzen
	var selected_tab = $(".navigationBar a").find(":first");
	
	
	// Auswählen eines Tabs
	$(".navigationBar a").click(function(){
	  highlight_tab.call(this);      
	})
	
	// MouseOver Effekt
	$(".navigation a").mouseover(function(){
	  //highlight_tab.call(this);      
	})
	
	// Selektieren und Deselektieren eines Tabs
	function highlight_tab(){
	  // Aktell ausgewählten Tab zurücksetzen
	  if (selected_tab != null){
	      // Headline ändern
		  if (selected_tab.hasClass('tab_headline_selected')){
		     selected_tab.removeClass('tab_headline_selected');
		     selected_tab.addClass('tab_headline');
		  }else{
		     selected_tab.removeClass('tab_headline_selected');
		     selected_tab.addClass('tab_headline');
		  }
		  
		  // Kurzinfos ändern
		  selected_tab.next().removeClass('tab_subtitle_selected');
	      selected_tab.next().addClass('tab_subtitle');
	  }
	  
	  // Tab selektieren
	  current_tab = $(this).find(":first");
	  selected_tab = current_tab;
		
	  
	  // Headline ändern
	  current_tab.removeClass('tab_headline');
	  current_tab.addClass('tab_headline_selected');
	  
	  // Kurzinfos ändern
    current_tab.next().removeClass('tab_subtitle');
	  current_tab.next().addClass('tab_subtitle_selected'); 
	}
	// Ende: Planai script mofification 

    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="' + $scrollButtonLeft_BG + '" />')
        .before('<img class="scrollButtons right" src="' + $scrollButtonRight_BG + '" />');

    // handle nav selection
    function selectNav() {
        $(this)
            .parents('ul:first')
                .find('a')
                    .removeClass('selected')
                .end()
            .end()
            .addClass('selected');
						
        $(this)
            .parents('ul:first')
                .find('li').each(function(i) {
     $(this).attr("class",$(this).find('a').attr('href').substr(1));
   });
                    

				$(this).parent().addClass($(this).attr('href').substr(1)+'_selected');
				

				
    }

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

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

    if (window.location.hash) {
        trigger({ id : window.location.hash.substr(1) });
    } else {
        
        trigger({ id :$('div.navigationBar a:first').attr('href').substr(1)});
    }

    // 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);

});