////** Step Carousel Viewer- (c) Dynamic Drive DHTML code library: http://www.dynamicdrive.com
////** Script Download/ http://www.dynamicdrive.com/dynamicindex4/stepcarousel.htm
////** Usage Terms: http://www.dynamicdrive.com/notice.htm
////** Current version (Sept 29th, 09'): 1.8 See http://www.dynamicdrive.com/dynamicindex4/stepcarouselchangelog.txt for details

//var stepcarousel={
//	ajaxloadingmsg: '<div style="margin: 1em; font-weight: bold"><img src="ajaxloadr.gif" style="vertical-align: middle" /> Fetching Content. Please wait...</div>', //customize HTML to show while fetching Ajax content
//	defaultbuttonsfade: 0.4, //Fade degree for disabled nav buttons (0=completely transparent, 1=completely opaque)
//	configholder: {},

//	getCSSValue:function(val){ //Returns either 0 (if val contains 'auto') or val as an integer
//		return (val=="auto")? 0 : parseInt(val)
//	},

//	getremotepanels:function($, config){ //function to fetch external page containing the panel DIVs
//		config.$belt.html(this.ajaxloadingmsg)
//		$.ajax({
//			url: config.contenttype[1], //path to external content
//			async: true,
//			error:function(ajaxrequest){
//				config.$belt.html('Error fetching content.<br />Server Response: '+ajaxrequest.responseText)
//			},
//			success:function(content){
//				config.$belt.html(content)
//				config.$panels=config.$gallery.find('.'+config.panelclass)
//				stepcarousel.alignpanels($, config)
//			}
//		})
//	},

//	getoffset:function(what, offsettype){
//		return (what.offsetParent)? what[offsettype]+this.getoffset(what.offsetParent, offsettype) : what[offsettype]
//	},

//	getCookie:function(Name){ 
//		var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair
//		if (document.cookie.match(re)) //if cookie found
//			return document.cookie.match(re)[0].split("=")[1] //return its value
//		return null
//	},

//	setCookie:function(name, value){
//		document.cookie = name+"="+value
//	},

//	fadebuttons:function(config, currentpanel){
//		config.$leftnavbutton.fadeTo('fast', currentpanel==0? this.defaultbuttonsfade : 1)
//		config.$rightnavbutton.fadeTo('fast', currentpanel==config.lastvisiblepanel? this.defaultbuttonsfade : 1)
//		if (currentpanel==config.lastvisiblepanel){
//			stepcarousel.stopautostep(config)
//		}

//	},

//	addnavbuttons:function($, config, currentpanel){
//		config.$leftnavbutton=$('<img src="'+config.defaultbuttons.leftnav[0]+'">').css({zIndex:50, position:'absolute', left:config.offsets.left+config.defaultbuttons.leftnav[1]+'px', top:config.offsets.top+config.defaultbuttons.leftnav[2]+'px', cursor:'hand', cursor:'pointer'}).attr({title:'Back '+config.defaultbuttons.moveby+' panels'}).appendTo('body')
//		config.$rightnavbutton=$('<img src="'+config.defaultbuttons.rightnav[0]+'">').css({zIndex:50, position:'absolute', left:config.offsets.left+config.$gallery.get(0).offsetWidth+config.defaultbuttons.rightnav[1]+'px', top:config.offsets.top+config.defaultbuttons.rightnav[2]+'px', cursor:'hand', cursor:'pointer'}).attr({title:'Forward '+config.defaultbuttons.moveby+' panels'}).appendTo('body')
//		config.$leftnavbutton.bind('click', function(){ //assign nav button event handlers
//			stepcarousel.stepBy(config.galleryid, -config.defaultbuttons.moveby)
//		})
//		config.$rightnavbutton.bind('click', function(){ //assign nav button event handlers
//			stepcarousel.stepBy(config.galleryid, config.defaultbuttons.moveby)
//		})
//		if (config.panelbehavior.wraparound==false){ //if carousel viewer should stop at first or last panel (instead of wrap back or forth)
//			this.fadebuttons(config, currentpanel)
//		}
//		return config.$leftnavbutton.add(config.$rightnavbutton)
//	},

//	alignpanels:function($, config){
//		var paneloffset=0
//		config.paneloffsets=[paneloffset] //array to store upper left offset of each panel (1st element=0)
//		config.panelwidths=[] //array to store widths of each panel
//		config.$panels.each(function(index){ //loop through panels
//			var $currentpanel=$(this)
//			$currentpanel.css({float: 'none', position: 'absolute', left: paneloffset+'px'}) //position panel
//			$currentpanel.bind('click', function(e){return config.onpanelclick(e.target)}) //bind onpanelclick() to onclick event
//			paneloffset+=stepcarousel.getCSSValue($currentpanel.css('marginRight')) + parseInt($currentpanel.get(0).offsetWidth || $currentpanel.css('width')) //calculate next panel offset
//			config.paneloffsets.push(paneloffset) //remember this offset
//			config.panelwidths.push(paneloffset-config.paneloffsets[config.paneloffsets.length-2]) //remember panel width
//		})
//		config.paneloffsets.pop() //delete last offset (redundant)
//		var addpanelwidths=0
//		var lastpanelindex=config.$panels.length-1
//		config.lastvisiblepanel=lastpanelindex
//		for (var i=config.$panels.length-1; i>=0; i--){
//			addpanelwidths+=(i==lastpanelindex? config.panelwidths[lastpanelindex] : config.paneloffsets[i+1]-config.paneloffsets[i])
//			if (config.gallerywidth>addpanelwidths){
//				config.lastvisiblepanel=i //calculate index of panel that when in 1st position reveals the very last panel all at once based on gallery width
//			}
//		}
//		config.$belt.css({width: paneloffset+'px'}) //Set Belt DIV to total panels' widths
//		config.currentpanel=(config.panelbehavior.persist)? parseInt(this.getCookie(config.galleryid+"persist")) : 0 //determine 1st panel to show by default
//		config.currentpanel=(typeof config.currentpanel=="number" && config.currentpanel<config.$panels.length)? config.currentpanel : 0
//		var endpoint=config.paneloffsets[config.currentpanel]+(config.currentpanel==0? 0 : config.beltoffset)
//		config.$belt.css({left: -endpoint+'px'})
//		if (config.defaultbuttons.enable==true){ //if enable default back/forth nav buttons
//			var $navbuttons=this.addnavbuttons($, config, config.currentpanel)
//			$(window).bind("load resize", function(){ //refresh position of nav buttons when page loads/resizes, in case offsets weren't available document.oncontentload
//				config.offsets={left:stepcarousel.getoffset(config.$gallery.get(0), "offsetLeft"), top:stepcarousel.getoffset(config.$gallery.get(0), "offsetTop")}
//				config.$leftnavbutton.css({left:config.offsets.left+config.defaultbuttons.leftnav[1]+'px', top:config.offsets.top+config.defaultbuttons.leftnav[2]+'px'})
//				config.$rightnavbutton.css({left:config.offsets.left+config.$gallery.get(0).offsetWidth+config.defaultbuttons.rightnav[1]+'px', top:config.offsets.top+config.defaultbuttons.rightnav[2]+'px'})
//			})
//		}
//		if (config.autostep && config.autostep.enable){ //enable auto stepping of Carousel?		
//			var $carouselparts=config.$gallery.add(typeof $navbuttons!="undefined"? $navbuttons : null)
//			$carouselparts.bind('click', function(){
//				config.autostep.status="stopped"
//				stepcarousel.stopautostep(config)
//			})
//			$carouselparts.hover(function(){ //onMouseover
//				stepcarousel.stopautostep(config)
//				config.autostep.hoverstate="over"
//			}, function(){ //onMouseout
//				if (config.steptimer && config.autostep.hoverstate=="over" && config.autostep.status!="stopped"){
//					config.steptimer=setInterval(function(){stepcarousel.autorotate(config.galleryid)}, config.autostep.pause)
//					config.autostep.hoverstate="out"
//				}
//			})
//			config.steptimer=setInterval(function(){stepcarousel.autorotate(config.galleryid)}, config.autostep.pause) //automatically rotate Carousel Viewer
//		} //end enable auto stepping check
//		this.createpaginate($, config)
//		this.statusreport(config.galleryid)
//		config.oninit()
//		config.onslideaction(this)
//	},

//	stepTo:function(galleryid, pindex){ /*User entered pindex starts at 1 for intuitiveness. Internally pindex still starts at 0 */
//		var config=stepcarousel.configholder[galleryid]
//		if (typeof config=="undefined"){
//			//alert("There's an error with your set up of Carousel Viewer \""+galleryid+ "\"!")
//			return
//		}
//		stepcarousel.stopautostep(config)
//		var pindex=Math.min(pindex-1, config.paneloffsets.length-1)
//		var endpoint=config.paneloffsets[pindex]+(pindex==0? 0 : config.beltoffset)
//		if (config.panelbehavior.wraparound==false && config.defaultbuttons.enable==true){ //if carousel viewer should stop at first or last panel (instead of wrap back or forth)
//			this.fadebuttons(config, pindex)
//		}
//		config.$belt.animate({left: -endpoint+'px'}, config.panelbehavior.speed, function(){config.onslideaction(this)})
//		config.currentpanel=pindex
//		this.statusreport(galleryid)
//	},
//	
//	stepBy:function(galleryid, steps, isauto){
//		var config=stepcarousel.configholder[galleryid]
//		if (typeof config=="undefined"){
//			//alert("There's an error with your set up of Carousel Viewer \""+galleryid+ "\"!")
//			return
//		}
//		if (!isauto) //if stepBy() function isn't called by autorotate() function
//			stepcarousel.stopautostep(config)
//		var direction=(steps>0)? 'forward' : 'back' //If "steps" is negative, that means backwards
//		var pindex=config.currentpanel+steps //index of panel to stop at
//		if (config.panelbehavior.wraparound==false){ //if carousel viewer should stop at first or last panel (instead of wrap back or forth)
//			pindex=(direction=="back" && pindex<=0)? 0 : (direction=="forward")? Math.min(pindex, config.lastvisiblepanel) : pindex
//			if (config.defaultbuttons.enable==true){ //if default nav buttons are enabled, fade them in and out depending on if at start or end of carousel
//				stepcarousel.fadebuttons(config, pindex)
//			}	
//		}
//		else{ //else, for normal stepBy behavior
//			if (pindex>config.lastvisiblepanel && direction=="forward"){
//				//if destination pindex is greater than last visible panel, yet we're currently not at the end of the carousel yet
//				pindex=(config.currentpanel<config.lastvisiblepanel)? config.lastvisiblepanel : 0
//			}
//			else if (pindex<0 && direction=="back"){
//				//if destination pindex is less than 0, yet we're currently not at the beginning of the carousel yet
//				pindex=(config.currentpanel>0)? 0 : config.lastvisiblepanel /*wrap around left*/
//			}
//		}
//		var endpoint=config.paneloffsets[pindex]+(pindex==0? 0 : config.beltoffset) //left distance for Belt DIV to travel to
//		if (pindex==0 && direction=='forward' || config.currentpanel==0 && direction=='back' && config.panelbehavior.wraparound==true){ //decide whether to apply "push pull" effect
//			config.$belt.animate({left: -config.paneloffsets[config.currentpanel]-(direction=='forward'? 100 : -30)+'px'}, 'normal', function(){
//				config.$belt.animate({left: -endpoint+'px'}, config.panelbehavior.speed, function(){config.onslideaction(this)})
//			})
//		}
//		else
//			config.$belt.animate({left: -endpoint+'px'}, config.panelbehavior.speed, function(){config.onslideaction(this)})
//		config.currentpanel=pindex
//		this.statusreport(galleryid)
//	},

//	autorotate:function(galleryid){
//		var config=stepcarousel.configholder[galleryid]
//		if (config.paneloffsets.length > 1){
//		    this.stepBy(galleryid, config.autostep.moveby, true)}
//	},


//	statusreport:function(galleryid){
//		var config=stepcarousel.configholder[galleryid]
//		if (config.statusvars.length==3){ //if 3 status vars defined
//			var startpoint=config.currentpanel //index of first visible panel 
//			var visiblewidth=0
//			for (var endpoint=startpoint; endpoint<config.paneloffsets.length; endpoint++){ //index (endpoint) of last visible panel
//				visiblewidth+=config.panelwidths[endpoint]
//				if (visiblewidth>config.gallerywidth){
//					break
//				}
//			}
//			startpoint+=1 //format startpoint for user friendiness
//			endpoint=(endpoint+1==startpoint)? startpoint : endpoint //If only one image visible on the screen and partially hidden, set endpoint to startpoint
//			var valuearray=[startpoint, endpoint, config.panelwidths.length]
//			for (var i=0; i<config.statusvars.length; i++){
//				window[config.statusvars[i]]=valuearray[i] //Define variable (with user specified name) and set to one of the status values
//				config.$statusobjs[i].text(valuearray[i]+" ") //Populate element on page with ID="user specified name" with one of the status values
//			}
//		}
//		stepcarousel.selectpaginate(jQuery, galleryid)
//	},

//	createpaginate:function($, config){
//		if (config.$paginatediv.length==1){
//			var $templateimg=config.$paginatediv.find('img["data-over"]:eq(0)') //reference first matching image on page
//			var controlpoints=[], controlsrc=[], imgarray=[], moveby=$templateimg.attr("data-moveby") || 1
//			var asize=(moveby==1? 0:1) + Math.floor((config.lastvisiblepanel+1) / moveby) //calculate # of pagination links to create
//			var imghtml=$('<div>').append($templateimg.clone()).html() //get HTML of first matching image
//			srcs=[$templateimg.attr('src'), $templateimg.attr('data-over'), $templateimg.attr('data-select')] //remember control's over and out, and selected image src
//			for (var i=0; i<asize; i++){
//				var moveto=Math.min(i*moveby, config.lastvisiblepanel)
//				imgarray.push(imghtml.replace(/>$/, ' data-index="'+i+'" data-moveto="'+moveto+'" title="Move to Panel '+(moveto+1)+'">') +'\n')
//				controlpoints.push(moveto) //store panel index each control goes to when clicked on
//			}
//			var $controls=$('<span></span>').replaceAll($templateimg).append(imgarray.join('')).find('img') //replace template link with links and return them
//			$controls.css({cursor:'pointer'})
//			config.$paginatediv.bind('click', function(e){
//				var $target=$(e.target)
//				if ($target.is('img') && $target.attr('data-over')){
//					stepcarousel.stepTo(config.galleryid, parseInt($target.attr('data-moveto'))+1)
//				}
//			})
//			config.$paginatediv.bind('mouseover mouseout', function(e){
//				var $target=$(e.target)
//				if ($target.is('img') && $target.attr('data-over')){
//					if (parseInt($target.attr('data-index')) != config.pageinfo.curselected) //if this isn't the selected link
//						$target.attr('src', srcs[(e.type=="mouseover")? 1 : 0])
//				}
//			})
//			config.pageinfo={controlpoints:controlpoints, $controls:$controls,  srcs:srcs, prevselected:null, curselected:null}
//		}
//	},

//	
//	selectpaginate:function($, galleryid){
//		var config=stepcarousel.configholder[galleryid]
//		if (config.$paginatediv.length==1){
//			for (var i=0; i<config.pageinfo.controlpoints.length; i++){
//				if (config.pageinfo.controlpoints[i] <= config.currentpanel) //find largest control point that's less than or equal to current panel shown
//					config.pageinfo.curselected=i
//			}
//			if (typeof config.pageinfo.prevselected!=null) //deselect previously selected link (if found)
//				config.pageinfo.$controls.eq(config.pageinfo.prevselected).attr('src', config.pageinfo.srcs[0])
//			config.pageinfo.$controls.eq(config.pageinfo.curselected).attr('src', config.pageinfo.srcs[2]) //select current paginate link
//			config.pageinfo.prevselected=config.pageinfo.curselected //set current selected link to previous
//		}
//	},


//	loadcontent:function(galleryid, url){
//		var config=stepcarousel.configholder[galleryid]
//		config.contenttype=['ajax', url]
//		stepcarousel.stopautostep(config)
//		stepcarousel.resetsettings($, config)
//		stepcarousel.init(jQuery, config)

//	},

//	init:function($, config){
//		config.gallerywidth=config.$gallery.width()
//		config.offsets={left:stepcarousel.getoffset(config.$gallery.get(0), "offsetLeft"), top:stepcarousel.getoffset(config.$gallery.get(0), "offsetTop")}
//		config.$belt=config.$gallery.find('.'+config.beltclass) //Find Belt DIV that contains all the panels
//		config.$panels=config.$gallery.find('.'+config.panelclass) //Find Panel DIVs that each contain a slide
//		config.$paginatediv=$('#'+config.galleryid+'-paginate') //get pagination DIV (if defined)
//		if (config.autostep)
//			config.autostep.pause+=config.panelbehavior.speed
//		config.onpanelclick=(typeof config.onpanelclick=="undefined")? function(target){} : config.onpanelclick //attach custom "onpanelclick" event handler
//		config.onslideaction=(typeof config.onslide=="undefined")? function(){} : function(beltobj){$(beltobj).stop(); config.onslide()} //attach custom "onslide" event handler
//		config.oninit=(typeof config.oninit=="undefined")? function(){} : config.oninit //attach custom "oninit" event handler
//		config.beltoffset=stepcarousel.getCSSValue(config.$belt.css('marginLeft')) //Find length of Belt DIV's left margin
//		config.statusvars=config.statusvars || []  //get variable names that will hold "start", "end", and "total" slides info
//		config.$statusobjs=[$('#'+config.statusvars[0]), $('#'+config.statusvars[1]), $('#'+config.statusvars[2])]
//		config.currentpanel=0
//		stepcarousel.configholder[config.galleryid]=config //store config parameter as a variable
//		if (config.contenttype[0]=="ajax" && typeof config.contenttype[1]!="undefined") //fetch ajax content?
//			stepcarousel.getremotepanels($, config)
//		else
//			stepcarousel.alignpanels($, config) //align panels and initialize gallery
//	},

//	resetsettings:function($, config){
//		config.$gallery.unbind()
//		config.$belt.stop()
//		config.$panels.remove()
//		if (config.$leftnavbutton){
//			config.$leftnavbutton.remove()
//			config.$rightnavbutton.remove()
//		}
//		if (config.$paginatediv.length==1){
//			config.$paginatediv.unbind()
//			config.pageinfo.$controls.eq(0).attr('src', config.pageinfo.srcs[0]).removeAttr('data-index').removeAttr('data-moveto').removeAttr('title') //reset first pagination link so it acts as template again
//			.end().slice(1).remove() //then remove all but first pagination link
//		}
//		if (config.autostep)
//			config.autostep.status=null
//		if (config.panelbehavior.persist){
//			stepcarousel.setCookie(window[config.galleryid+"persist"], 0) //set initial panel to 0, overridden w/ current panel if window.unload is invoked
//		}
//	},

//	setup:function(config){
//		//Disable Step Gallery scrollbars ASAP dynamically (enabled for sake of users with JS disabled)
//		document.write('<style type="text/css">\n#'+config.galleryid+'{overflow: hidden;}\n</style>')
//		jQuery(document).ready(function($){
//			config.$gallery=$('#'+config.galleryid)
//			stepcarousel.init($, config)
//		}) //end document.ready
//		jQuery(window).bind('unload', function(){ //clean up on page unload
//			stepcarousel.resetsettings($, config)
//			if (config.panelbehavior.persist)
//				stepcarousel.setCookie(config.galleryid+"persist", config.currentpanel)
//			jQuery.each(config, function(ai, oi){
//				oi=null
//			})
//			config=null
//		})
//	}
//}


(function () {
    $.fn.infiniteCarousel = function () {
        function repeat(str, n) {
            return new Array( n + 1 ).join(str);
        }
        
        return this.each(function () {
            // magic!
            var $wrapper = $('> div', this).css('overflow', 'hidden'),
                $slider = $wrapper.find('> ul').width(9999),
                $items = $slider.find('> li'),
                $single = $items.filter(':first')
                
                singleWidth = $single.outerWidth(),
                visible = Math.ceil($wrapper.innerWidth() / singleWidth),
                currentPage = 1,
                pages = Math.ceil($items.length / visible);
                
            /* TASKS */
            
            // 1. pad the pages with empty element if required
            if ($items.length % visible != 0) {
                // pad
                $slider.append(repeat('<li class="empty" />', visible - ($items.length % visible)));
                $items = $slider.find('> li');
            }
            
            // 2. create the carousel padding on left and right (cloned)
            $items.filter(':first').before($items.slice(-visible).clone().addClass('cloned'));
            $items.filter(':last').after($items.slice(0, visible).clone().addClass('cloned'));
            $items = $slider.find('> li');
            
            // 3. reset scroll
            $wrapper.scrollLeft(singleWidth * visible);
            
            // 4. paging function
            function gotoPage(page) {
				if (pages > 1){
                var dir = page < currentPage ? -1 : 1,
                    n = Math.abs(currentPage - page),
                    left = singleWidth * dir * visible * n;
                
                $wrapper.filter(':not(:animated)').animate({
                    scrollLeft : '+=' + left
                }, 1000, function () {
                    // if page == last page - then reset position
                    if (page > pages) {
                        $wrapper.scrollLeft(singleWidth * visible);
                        page = 1;
                    } else if (page == 0) {
                        page = pages;
                        $wrapper.scrollLeft(singleWidth * visible * pages);
                    }
                    
                    currentPage = page;
                }); }
            }
            
            // 5. insert the back and forward link
            $wrapper.after('<a href="#" class="arrow back">&lt;</a><a href="#" class="arrow forward">&gt;</a>');
            
            // 6. bind the back and forward links
            $('a.back', this).click(function () {
                gotoPage(currentPage - 1);
                return false;
            });
            
            $('a.forward', this).click(function () {
                gotoPage(currentPage + 1);
                return false;
            });
            
            $(this).bind('goto', function (event, page) {
                gotoPage(page);
            });
            
            // THIS IS NEW CODE FOR THE AUTOMATIC INFINITE CAROUSEL
            $(this).bind('next', function () {
                gotoPage(currentPage + 1);
            });
            $(this).bind('back', function () {
                gotoPage(currentPage - 1);
            });
            
            $(this).bind('next2', function () {
                gotoPage(currentPage + 1);
            });
            $(this).bind('back2', function () {
                gotoPage(currentPage - 1);
            });
        });
    };
})(jQuery);