//** 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 1.9 (July 28th, 10'): See http://www.dynamicdrive.com/dynamicindex4/stepcarouselchangelog.txt for details


jQuery.noConflict()

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)