// 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: 800,

        // 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);
	
	////////////////////////////////////////////////
	// autoscroll
	///////////////////////////////////////////////

	// first hide the navigation buttons
	var $buttons = $('img.right').add('img.left').hide();

	// start to automatically cycle the tabs
	   cycleTimer = setInterval(function () {
	   $scroll.trigger('next');
	}, 10000);  // how many milliseconds, change this to whatever you like

	// select some trigger elements to stop the auto-cycle
	var $stopTriggers = $('#slider .navigation').find('a')    // tab headers
	    .add('.scroll')                     // panel itself
	    .add('.stopscroll')             // links to the stop class div
	    .add('.navigation')          // links to navigation id for tabs
	    .add("a[href^='#']");      // links to a tab

				
		// this is the function that will stop the auto-cycle
		function stopCycle() {
		   // remove the no longer needed stop triggers
		   clearInterval(cycleTimer);          // stop the auto-cycle itself
		   // $buttons.show();                           // show the navigation buttons
		   // document.getElementById('stopscroll').style.display='none';    // hide the stop div
		   // document.getElementById('startscroll').style.display='block';  // block the start div
		
		}


	// bind stop cycle function to the click event using namespaces
	$stopTriggers.bind('click.cycle', stopCycle);

	///////////////////////////////////////////////
	// end autoscroll
	///////////////////////////////////////////////
	//  edit to start again
	///////////////////////////////////////////////
	// select some trigger elements to stop the auto-cycle

	var $startTriggers_start = $('#slider .navigation').find('a') // tab headers
	    .add('.startscroll')               // links to the start class div
		.add('.navigation'); 

	// this is the function that will start the auto-cycle
	function startCycle() {
	   // remove the no longer needed stop triggers
	   $buttons.hide();                    // show the navigation buttons
	   $scroll.trigger('next');          // directly to the next first
	   cycleTimer = setInterval(function () {         // now set timer again
	   $scroll.trigger('next');
	   }, 10000);  // how many milliseconds, change this to whatever you like
	   //document.getElementById('stopscroll').style.display='block';  // block the stop div
	   //document.getElementById('startscroll').style.display='none';  // hide the start div
	}

	// bind stop cycle function to the click event using namespaces
	$startTriggers_start.bind('click.cycle', startCycle);

	///////////////////////////////////////////////
	// end  edit to start
	///////////////////////////////////////////////
	
	
    // 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);

});