//
//SLIDESHOW
//

$slideshow = {
	    context: false,
	    tabs: false,
	    timeout: 5000,      // time before next slide appears (in ms)
	    slideSpeed: 500,   // time it takes to slide in each slide (in ms)
	    tabSpeed: 500,      // time it takes to slide in each slide (in ms) when clicking through tabs
	    fx: 'scrollHorz',   // the slide effect to use
	    
	    init: function() {
	        // set the context to help speed up selectors/improve performance
	        this.context = $('#diaporama');
	        
	        // set tabs to current hard coded navigation items
	        this.tabs = $('ul.slides-nav li', this.context);
	        
	        // remove hard coded navigation items from DOM 
	        // because they aren't hooked up to jQuery cycle
	        this.tabs.remove();
	        
	        // prepare slideshow and jQuery cycle tabs
	        this.prepareSlideshow();
	    },
	    
	    prepareSlideshow: function() {
	        // initialise the jquery cycle plugin -
	        // for information on the options set below go to: 
	        // http://malsup.com/jquery/cycle/options.html
	        $('div.slides > ul', $slideshow.context).cycle({
	            fx: $slideshow.fx,
	            timeout: $slideshow.timeout,
	            speed: $slideshow.slideSpeed,
	            fastOnEvent: $slideshow.tabSpeed,
	            pager: $('ul.slides-nav', $slideshow.context),
	            pagerAnchorBuilder: $slideshow.prepareTabs,
	            before: $slideshow.activateTab,
	            pauseOnPagerHover: true,
	            height:'278px',
	            pause: true,
	            next:$('#ac_diapo #ac_bt_gauche'),
	            prev:$('#ac_diapo #ac_bt_droite')
	        });            
	    },
	    
	    prepareTabs: function(i, slide) {
	        // return markup from hardcoded tabs for use as jQuery cycle tabs
	        // (attaches necessary jQuery cycle events to tabs)
	        return $slideshow.tabs.eq(i);
	    },

	    activateTab: function(currentSlide, nextSlide) {
	        // get the active tab
	        var activeTab = $('a[href="#' + nextSlide.id + '"]', $slideshow.context);
	        
	        // if there is an active tab
	        if(activeTab.length) {
	            // remove active styling from all other tabs
	            $slideshow.tabs.removeClass('on');
	            
	            // add active styling to active button
	            activeTab.parent().addClass('on');
	        }            
	    
	    }            
};