/* Ultimate Fade-in slideshow (v2.1)
* Last updated: Sept 10th, 2009. This notice must stay intact for usage 
* Author: Dynamic Drive at http://www.dynamicdrive.com/
* Visit http://www.dynamicdrive.com/ for full source code
*/

//Oct 6th, 09' (v2.1): Adds option to randomize display order of images, via new option displaymode.randomize

var fadeSlideShow_descpanel={
	controls: [['x.png',7,7], ['restore.png',10,11], ['loading.gif',54,55]], //full URL and dimensions of close, restore, and loading images
	fontStyle: 'normal 11px Verdana', //font style for text descriptions
	slidespeed: 200 //speed of description panel animation (in millisec)
}

var intCountImagesLoaded = 0
//No need to edit beyond here...

jQuery.noConflict()

function fadeSlideShow(settingarg){
  var curimagearray = new Array();
  var previmagearray = new Array();
	this.setting=settingarg
	settingarg=null
	var setting=this.setting
	setting.fadeduration=setting.fadeduration? parseInt(setting.fadeduration) : 500
  for (i = 0; i < setting.wrapperidarray.length; i++)
  {
    curimagearray[i] = (setting.persist)? fadeSlideShow.routines.getCookie("gallery-"+setting.wrapperidarray[i]) : 0
    previmagearray[i] = (setting.persist)? fadeSlideShow.routines.getCookie("gallery-"+setting.wrapperidarray[i]) : 0
  }
  setting.curimage=curimagearray
  setting.previmage=previmagearray

  for (i = 0; i < setting.wrapperidarray.length; i++)
  {
    setting.curimage[i]=setting.curimage[i] || 0 //account for curimage being null if cookie is empty
    setting.previmage[i]=setting.previmage[i] || 0 //account for curimage being null if cookie is empty
  }
//  setting.curimage = (setting.persist)? fadeSlideShow.routines.getCookie("gallery-"+setting.wrapperidarray[0]) : 0
//  setting.curimage = setting.curimage || 0 //account for curimage being null if cookie is empty



    var strCurImage = ""
    for (i = 0; i < setting.wrapperidarray.length; i++)
    {
      strCurImage += setting.curimage[i] + ","
    }
    var strPrevImage = ""
    for (i = 0; i < setting.wrapperidarray.length; i++)
    {
      strPrevImage += setting.previmage[i] + ","
    }
   //alert(strPrevImage + " ~ " + (imgindex))
    //document.getElementById("test").innerHTML += strCurImage + " ~ " + " ~ " + strPrevImage + "<br>"



	setting.currentstep=0 //keep track of # of slides slideshow has gone through (applicable in displaymode='auto' only)
	setting.totalsteps=setting.imagearray.length*(setting.displaymode.cycles>0? setting.displaymode.cycles : Infinity) //Total steps limit (applicable in displaymode='auto' only w/ cycles>0)
	
	var fglayerarray = new Array();
  var bglayerarray = new Array();
	for (i = 0; i < setting.wrapperidarray.length; i++)
  {
    fglayerarray[i]=0, bglayerarray[i]=1 //index of active and background layer (switches after each change of slide)
  }
  setting.fglayer=fglayerarray, setting.bglayer=bglayerarray //index of active and background layer (switches after each change of slide)
	//setting.fglayer=0, setting.bglayer=1 //index of active and background layer (switches after each change of slide)
	setting.oninit=setting.oninit || function(){}
	setting.onslide=setting.onslide || function(){}
  setting.selectedWrapperIds = ",,"
  setting.curWrapperIdIndex = -1
	if (setting.displaymode.randomize) //randomly shuffle order of images?
		setting.imagearray.sort(function() {return 0.5 - Math.random()})
  //if (setting.displaymode.randomizeIds) //randomly shuffle order of images?
	//	setting.wrapperidarray.sort(function() {return 0.5 - Math.random()})
	var preloadimages=[] //preload images
	setting.longestdesc="" //get longest description of all slides. If no desciptions defined, variable contains ""
	for (var i=0; i<setting.imagearray.length; i++){ //preload images
		preloadimages[i]=new Image()
		preloadimages[i].src=setting.imagearray[i][0]
		if (setting.imagearray[i][3] && setting.imagearray[i][3].length>setting.longestdesc.length)
			setting.longestdesc=setting.imagearray[i][3]
	}
	var closebutt=fadeSlideShow_descpanel.controls[0] //add close button to "desc" panel if descreveal="always"
	setting.closebutton=(setting.descreveal=="always")? '<img class="close" src="'+closebutt[0]+'" style="float:right;cursor:hand;cursor:pointer;width:'+closebutt[1]+'px;height:'+closebutt[2]+'px;margin-left:2px" title="Hide Description" />' : ''
	var slideshow=this
	jQuery(document).ready(function($){ //fire on DOM ready
		var setting=slideshow.setting
		var fullhtml=fadeSlideShow.routines.getFullHTML(setting.imagearray) //get full HTML of entire slideshow
    var wrapperdivarray = new Array();
    var gallerylayersarray = new Array();
    var loadingimgarray = new Array();
    var curimagearray2 = new Array();

    for (i = 0; i < setting.wrapperidarray.length; i++)
    {
      wrapperdivarray[i] = $('#'+setting.wrapperidarray[i]).css({position:'relative', visibility:'visible', background:setting.background, overflow:'hidden', width:setting.dimensions[0], height:setting.dimensions[1]}).empty()
      
    }
    setting.$wrapperdiv=wrapperdivarray

    for (i = 0; i < setting.wrapperidarray.length; i++)
    {
      gallerylayersarray[i]=$('<div class="gallerylayer"></div><div class="gallerylayer"></div>') //two stacked DIVs to display the actual slide 
			  .css({position:'absolute', left:0, top:0, width:'100%', height:'100%', background:setting.background})
			  .appendTo(setting.$wrapperdiv[i])
		  
      loadingimgarray[i]=$('<img src="'+fadeSlideShow_descpanel.controls[2][0]+'" style="position:absolute;width:'+fadeSlideShow_descpanel.controls[2][1]+';height:'+fadeSlideShow_descpanel.controls[2][2]+'" />')
			  .css({left:setting.dimensions[0]/2-fadeSlideShow_descpanel.controls[2][1]/2, top:setting.dimensions[1]/2-fadeSlideShow_descpanel.controls[2][2]}) //center loading gif
			  .appendTo(setting.$wrapperdiv[i])
      
      if (setting.$wrapperdiv[i].length==0){ //if no wrapper DIV found
			  alert("Error: DIV with ID \""+setting.wrapperidarray[i]+"\" not found on page.")
			  return
		  }
    }
    setting.$gallerylayers = gallerylayersarray
    var $loadingimg = loadingimgarray
    var $curimage = new Array();
    //alert(fullhtml)
    //$curimage[0]=setting.$gallerylayers[0].html(fullhtml).find('img').hide().eq(0) //(setting.curimage[i]) //prefill both layers with entire slideshow content, hide all images, and return current image
    
    for (i = 0; i < setting.wrapperidarray.length; i++)
    {
      $curimage[i]=setting.$gallerylayers[i].html(fullhtml).find('img').hide().eq(i) //(setting.curimage[i]) //prefill both layers with entire slideshow content, hide all images, and return current image    
    }
    //var $curimage = curimagearray2

		/*setting.$wrapperdiv=$('#'+setting.wrapperidarray[0]).css({position:'relative', visibility:'visible', background:'black', overflow:'hidden', width:setting.dimensions[0], height:setting.dimensions[1]}).empty() //main slideshow DIV
		if (setting.$wrapperdiv.length==0){ //if no wrapper DIV found
			alert("Error: DIV with ID \""+setting.wrapperidarray[0]+"\" not found on page.")
			return
		}*/
	  
		if (setting.longestdesc!=""){ //if at least one slide contains a description (feature is enabled)
			fadeSlideShow.routines.adddescpanel($, setting)
			if (setting.descreveal=="always"){ //position desc panel so it's visible to begin with
				setting.$descpanel.css({top:setting.dimensions[1]-setting.panelheight})
				setting.$descinner.click(function(e){ //asign click behavior to "close" icon
					if (e.target.className=="close"){
						slideshow.showhidedescpanel('hide')
					}
				})
				setting.$restorebutton.click(function(e){ //asign click behavior to "restore" icon
					slideshow.showhidedescpanel('show')
					$(this).css({visibility:'hidden'})
				})
			}
			else{ //display desc panel on demand (mouseover)
        for (i = 0; i < setting.wrapperidarray.length; i++)
        {
				  setting.$wrapperdiv[i].bind('mouseenter', function(){slideshow.showhidedescpanel('show')})
				  setting.$wrapperdiv[i].bind('mouseleave', function(){slideshow.showhidedescpanel('hide')})
        }
			}
		}
		for (i = 0; i < setting.wrapperidarray.length; i++)
    {
      setting.curimage[i] = i
    }
    for (i = 0; i < setting.wrapperidarray.length; i++)
    {
      setting.$wrapperdiv[i].bind('mouseenter', function(){setting.ismouseover=true}) //pause slideshow mouseover
		  setting.$wrapperdiv[i].bind('mouseleave', function(){setting.ismouseover=false})
      //alert(i)
      //setting.curimage[i] = i
      //alert(setting.curimage[i])
      //setting.previmage[i] = i
      //alert(setting.curimage[i])
      if ($curimage[i].get(0).complete){ //accounf for IE not firing image.onload
			  $loadingimg[i].hide()
			  slideshow.paginateinit($)
			  slideshow.showslide(i)//(setting.curimage[i])
		  }
		  else{ //initialize slideshow when first image has fully loaded
			  $loadingimg[i].hide()
			  slideshow.paginateinit($)
			  $curimage[i].bind('load', function(){slideshow.showslide(i)})//(setting.curimage[i])})
		  }
      //setting.curimage[i] = setting.wrapperidarray.length -1
    }
		setting.oninit.call(slideshow) //trigger oninit() event
		$(window).bind('unload', function(){ //clean up and persist
			if (slideshow.setting.persist) //remember last shown image's index
      {
        for (i = 0; i < setting.wrapperidarray.length; i++)
        {
				  fadeSlideShow.routines.setCookie("gallery-"+setting.wrapperidarray[i], setting.curimage[i])
        }
      }
			jQuery.each(slideshow.setting, function(k){
				if (slideshow.setting[k] instanceof Array){
					for (var i=0; i<slideshow.setting[k].length; i++){
						if (slideshow.setting[k][i].tagName=="DIV") //catches 2 gallerylayer divs, gallerystatus div
							slideshow.setting[k][i].innerHTML=null
						slideshow.setting[k][i]=null
					}
				}
			})
			slideshow=slideshow.setting=null
		})
	})
}

fadeSlideShow.prototype={

	navigate:function(keyword){
		var setting=this.setting
		clearTimeout(setting.playtimer)
		if (setting.displaymode.type=="auto"){ //in auto mode
			setting.displaymode.type="manual" //switch to "manual" mode when nav buttons are clicked on
			setting.displaymode.wraparound=true //set wraparound option to true
		}
		if (!isNaN(parseInt(keyword))){ //go to specific slide?
			this.showslide(parseInt(keyword))
		}
		else if (/(prev)|(next)/i.test(keyword)){ //go back or forth inside slide?
			this.showslide(keyword.toLowerCase())
		}
	},

	showslide:function(keyword){
		var slideshow=this
		var setting=slideshow.setting
		var intfadeduration = setting.fadeduration
		
		if (keyword!="next" && keyword!="prev" && setting.showImagesImmediately)
		{
	    intfadeduration = 0  //Make sure that the first set of images don't fade in and rather display immediately
	  }
		
    if (setting.displaymode.type=="auto" && setting.ismouseover && setting.currentstep<=setting.totalsteps && setting.pauseOnMouseOver){ //if slideshow in autoplay mode and mouse is over it, pause it
			setting.playtimer=setTimeout(function(){slideshow.showslide('next')}, setting.displaymode.pause)
			return
		}
    
    var intWrapperIdIndex = -1
//alert(setting.selectedWrapperIds);
    if(setting.selectedWrapperIds.split(",").length >= setting.wrapperidarray.length + 3)
    {
 
//      if (setting.displaymode.randomizeIds)
//      {
//        alert(setting.selectedWrapperIds);
//        setting.selectedWrapperIds = ",," + setting.selectedWrapperIds.split(",")[setting.selectedWrapperIds.split(",").length - 2] + ","
//        alert(setting.selectedWrapperIds);
//      }
//      else
//      {
//        setting.selectedWrapperIds = ",,"
//      }
     setting.selectedWrapperIds = ",,"
    }

    do 
    {
      if (intCountImagesLoaded < setting.wrapperidarray.length)
      {
        intWrapperIdIndex += 1
      }
      else if (setting.displaymode.randomizeIds)
      {
        intWrapperIdIndex = Math.floor(Math.random()*setting.wrapperidarray.length)   
      }
      else
      {
        intWrapperIdIndex += 1
      }
      
    }while ((setting.selectedWrapperIds.indexOf(intWrapperIdIndex)!=-1) || (intWrapperIdIndex == setting.curWrapperIdIndex))
    if (intCountImagesLoaded < setting.wrapperidarray.length)
    {
      intCountImagesLoaded += 1
    }

    setting.selectedWrapperIds += intWrapperIdIndex + ","
    setting.curWrapperIdIndex = intWrapperIdIndex
    //setting.prevWrapperId = 
    
    //alert(intWrapperIdIndex);
	//setting.$wrapperdiv=$('#'+'fadeshow2').css({position:'relative', visibility:'visible', background:'black', overflow:'hidden', width:setting.dimensions[0], height:setting.dimensions[1]}).empty() //main slideshow DIV
    
		var totalimages=setting.imagearray.length
		var imgindex=(keyword=="next")? (setting.curimage[intWrapperIdIndex]<totalimages-1? setting.curimage[intWrapperIdIndex]+1 : 0)
			: (keyword=="prev")? (setting.curimage[intWrapperIdIndex]>0? setting.curimage[intWrapperIdIndex]-1 : totalimages-1)
			: intWrapperIdIndex
		//	: Math.min(keyword, totalimages-1)
		//if (setting.busyloadingimages){imgindex=intWrapperIdIndex}
		//imgindex=intWrapperIdIndex
		//var intImgIndex = imgindex
		//if (setting.busyloadingimages){intImgIndex = intWrapperIdIndex}
		var $slideimage=setting.$gallerylayers[intWrapperIdIndex].eq(setting.bglayer[intWrapperIdIndex]).find('img').hide().eq(imgindex).show() //hide all images except current one
		var imgdimensions=[$slideimage.width(), $slideimage.height()] //center align image
		$slideimage.css({marginLeft: (imgdimensions[0]>0 && imgdimensions[0]<setting.dimensions[0])? setting.dimensions[0]/2-imgdimensions[0]/2 : 0})
		$slideimage.css({marginTop: (imgdimensions[1]>0 && imgdimensions[1]<setting.dimensions[1])? setting.dimensions[1]/2-imgdimensions[1]/2 : 0})
		setting.$gallerylayers[intWrapperIdIndex].eq(setting.bglayer[intWrapperIdIndex]).css({zIndex:1000, opacity:0}) //background layer becomes foreground
			.stop().css({opacity:0}).animate({opacity:1}, intfadeduration, function(){ //Callback function after fade animation is complete:
				clearTimeout(setting.playtimer)
				try{
					setting.onslide.call(slideshow, setting.$gallerylayers[intWrapperIdIndex].eq(setting.fglayer[intWrapperIdIndex]).get(0), setting.curimage[intWrapperIdIndex])
				}catch(e){
					alert("Fade In Slideshow error: An error has occured somwhere in your code attached to the \"onslide\" event: "+e)
				}
				setting.currentstep+=1
				if (setting.displaymode.type=="auto"){
					if (setting.currentstep<=setting.totalsteps || setting.displaymode.cycles==0)
						setting.playtimer=setTimeout(function(){slideshow.showslide('next')}, setting.displaymode.pause)
				}
			}) //end callback function
		setting.$gallerylayers[intWrapperIdIndex].eq(setting.fglayer[intWrapperIdIndex]).css({zIndex:999}) //foreground layer becomes background
		setting.fglayer[intWrapperIdIndex]=setting.bglayer[intWrapperIdIndex]
		setting.bglayer[intWrapperIdIndex]=(setting.bglayer[intWrapperIdIndex]==0)? 1 : 0
    for (i = 0; i < setting.wrapperidarray.length; i++)
    {
      setting.curimage[i]=imgindex
    }
    var strCurImage = ""
    for (i = 0; i < setting.wrapperidarray.length; i++)
    {
      strCurImage += setting.curimage[i] + ","
    }
   //alert(strCurImage + " ~ " + (imgindex))

		//setting.curimage[intWrapperIdIndex]=imgindex
    setting.previmage[intWrapperIdIndex]=intWrapperIdIndex//imgindex
//    alert(setting.imagearray[0].length)
//		if (setting.$descpanel)
//			setting.$descpanel.css({visibility:(setting.imagearray[imgindex][3])? 'visible' : 'hidden'})
//		if (setting.imagearray[imgindex][3])
//			setting.$descinner.empty().html(setting.closebutton + setting.imagearray[imgindex][3])
//		if (setting.displaymode.type=="manual" && !setting.displaymode.wraparound){
//			this.paginatecontrol()
//		}
		if (setting.$status) //if status container defined
			setting.$status.html(setting.curimage[intWrapperIdIndex]+1 + "/" + totalimages)

    var strPrevImage = ""
    for (i = 0; i < setting.wrapperidarray.length; i++)
    {
      strPrevImage += setting.previmage[i] + ","
    }
   //alert(strPrevImage + " ~ " + (imgindex))
   //document.getElementById("test").innerHTML += strCurImage + " ~ " + (imgindex) + " ~ " + intWrapperIdIndex + " ~ " + strPrevImage + "<br>"

	},

	showhidedescpanel:function(state, showcontrol){
		var setting=this.setting
		var endpoint=(state=="show")? setting.dimensions[1]-setting.panelheight : this.setting.dimensions[1]
		setting.$descpanel.stop().animate({top:endpoint}, fadeSlideShow_descpanel.slidespeed, function(){
			if (setting.descreveal=="always" && state=="hide")
				setting.$restorebutton.css({visibility:'visible'}) //show restore button
		})
	},

	paginateinit:function($){
		var slideshow=this
		var setting=this.setting
		if (setting.togglerid){ //if toggler div defined
			setting.$togglerdiv=$("#"+setting.togglerid)
			setting.$prev=setting.$togglerdiv.find('.prev').data('action', 'prev')
			setting.$next=setting.$togglerdiv.find('.next').data('action', 'next')
			setting.$prev.add(setting.$next).click(function(e){ //assign click behavior to prev and next controls
				var $target=$(this)
				slideshow.navigate($target.data('action'))
				e.preventDefault()
			})
			setting.$status=setting.$togglerdiv.find('.status')
		}
	},

	paginatecontrol:function(){
		var setting=this.setting
			setting.$prev.css({opacity:(setting.curimage[setting.curWrapperIdIndex]==0)? 0.4 : 1}).data('action', (setting.curimage[setting.curWrapperIdIndex]==0)? 'none' : 'prev')
			setting.$next.css({opacity:(setting.curimage[setting.curWrapperIdIndex]==setting.imagearray.length-1)? 0.4 : 1}).data('action', (setting.curimage[setting.curWrapperIdIndex]==setting.imagearray.length-1)? 'none' : 'next')
			if (document.documentMode==8){ //in IE8 standards mode, apply opacity to inner image of link
				setting.$prev.find('img:eq(0)').css({opacity:(setting.curimage[setting.curWrapperIdIndex]==0)? 0.4 : 1})
				setting.$next.find('img:eq(0)').css({opacity:(setting.curimage[setting.curWrapperIdIndex]==setting.imagearray.length-1)? 0.4 : 1})
			}
	}

	
}

fadeSlideShow.routines={

	getSlideHTML:function(imgelement){
		var layerHTML=(imgelement[1])? '<a href="'+imgelement[1]+'" target="'+imgelement[2]+'">\n' : '' //hyperlink slide?
		layerHTML+='<img src="'+imgelement[0]+'" style="border-width:0;" />\n'
		layerHTML+=(imgelement[1])? '</a>\n' : ''
		return layerHTML //return HTML for this layer
	},

	getFullHTML:function(imagearray){
		var preloadhtml=''
		for (var i=0; i<imagearray.length; i++)
			preloadhtml+=this.getSlideHTML(imagearray[i])
		return preloadhtml
	},

	adddescpanel:function($, setting){
		setting.$descpanel=$('<div class="fadeslidedescdiv"></div>')
			.css({position:'absolute', visibility:'hidden', width:'100%', left:0, top:setting.dimensions[1], font:fadeSlideShow_descpanel.fontStyle, zIndex:'1001'})
			.appendTo(setting.$wrapperdiv[0])
		$('<div class="descpanelbg"></div><div class="descpanelfg"></div>') //create inner nav panel DIVs
			.css({position:'absolute', left:0, top:0, width:setting.$descpanel.width()-8, padding:'4px'})
			.eq(0).css({background:'black', opacity:0.7}).end() //"descpanelbg" div
			.eq(1).css({color:'white'}).html(setting.closebutton + setting.longestdesc).end() //"descpanelfg" div
			.appendTo(setting.$descpanel)
		setting.$descinner=setting.$descpanel.find('div.descpanelfg')
		setting.panelheight=setting.$descinner.outerHeight()
		setting.$descpanel.css({height:setting.panelheight}).find('div').css({height:'100%'})
		if (setting.descreveal=="always"){ //create restore button
			setting.$restorebutton=$('<img class="restore" title="Restore Description" src="' + fadeSlideShow_descpanel.controls[1][0] +'" style="position:absolute;visibility:hidden;right:0;bottom:0;z-index:1002;width:'+fadeSlideShow_descpanel.controls[1][1]+'px;height:'+fadeSlideShow_descpanel.controls[1][2]+'px;cursor:pointer;cursor:hand" />')
			.appendTo(setting.$wrapperdiv[0])


		}
	},


	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 + ";path=/"
	}
}