//easing equation, borrowed from jQuery easing plugin
//http://gsgd.co.uk/sandbox/jquery/easing/
jQuery.easing.easeOutQuart = function (x, t, b, c, d) {
	return -c * ((t=t/d-1)*t*t*t - 1) + b;
};

jQuery(function( jQuery ){
	/**
	 * Most jQuery.serialScroll's settings, actually belong to jQuery.ScrollTo, check it's demo for an example of each option.
	 * @see http://flesler.webs.com/jQuery.ScrollTo/
	 * You can use EVERY single setting of jQuery.ScrollTo, in the settings hash you send to jQuery.serialScroll.
	 */
	
	/**
	 * The plugin binds 6 events to the container to allow external manipulation.
	 * prev, next, goto, start, stop and notify
	 * You use them like this: jQuery(your_container).trigger('next'), jQuery(your_container).trigger('goto', [5]) (0-based index).
	 * If for some odd reason, the element already has any of these events bound, trigger it with the namespace.
	 */		
	
	/**
	 * IMPORTANT: this call to the plugin specifies ALL the settings (plus some of jQuery.ScrollTo)
	 * This is done so you can see them. You DON'T need to specify them all.
	 * A 'target' is specified, that means that #screen is the context for target, prev, next and navigation.
	 */
	
	jQuery('#image_carousel').serialScroll({
		target:'.yui-carousel-scroller',
		items:'li', //selector to the items ( relative to the matched elements, '#sections' in this case )
		prev:'#yui-gen3',//selector to the 'prev' button (absolute!, meaning it's relative to the document)
		next:'#yui-gen4',//selector to the 'next' button (absolute too)
		axis:'x',//the default is 'y'
		queue:false,//we scroll on both axes, scroll both at the same time.
		event:'click',//on which event to react (click is the default, you probably won't need to specify it)
		stop:false,//each click will stop any previous animations of the target. (false by default)
		lock:true, //ignore events if already animating (true by default)
		duration:700,//length of the animation (if you scroll 2 axes and use queue, then each axis take half this time)
		start: 0, //on which element (index) to begin ( 0 is the default, redundant in this case )
		force:true, //force a scroll to the element specified by 'start' (some browsers don't reset on refreshes)
		cycle:true,//cycle endlessly ( constant velocity, true is the default )
		step:1, //how many items to scroll each time ( 1 is the default, no need to specify )
		jump:false, //if true, items become clickable (or w/e 'event' is, and when activated, the pane scrolls to them)
		lazy:false,//(default) if true, the plugin looks for the items on each event(allows AJAX or JS content, or reordering)
		interval: 4000, //it's the number of milliseconds to automatically go to the next
		navigation:'.galleryNavigation a.link',
		constant:true,

		onBefore:function( e, elem, jQuerypane, jQueryitems, pos ){
			/**
			 * 'this' is the triggered element 
			 * e is the event object
			 * elem is the element we'll be scrolling to
			 * jQuerypane is the element being scrolled
			 * jQueryitems is the items collection at this moment
			 * pos is the position of elem in the collection
			 * if it returns false, the event will be ignored
			 */
			 //those arguments with a jQuery are jqueryfied, elem isn't.
			jQuery("a.link").removeClass("selected");
			scrollingTo = jQuery(elem).attr('name');
			jQuery('#' + scrollingTo).addClass("selected")
			e.preventDefault();
			if( this.blur )
				this.blur();
		},
		onAfter:function( elem ){
			// 
		}
	});
});