/***********************************************
* Ultimate Fade-In Slideshow (v1.51): © Dynamic Drive (http://www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit http://www.dynamicdrive.com/ for this script and 100s more.
http://www.dynamicdrive.com/dynamicindex14/fadeinslideshow.htm
new fadeshow(IMAGES_ARRAY_NAME, slideshow_width, slideshow_height, borderwidth, delay, pause, optionalRandomOrder)
***********************************************/
/* Ultimate Fade-in slideshow (v2.0)
* 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
*/

/*options  	Description
wrapperid
Required
	The ID of an empty DIV container on your page that will show the Fade In Slideshow. Such a DIV on the page may look like this:

<div id="fadeshow1"></div>


dimensions
Required
	The dimensions of the slideshow in the format [width_int, height_int] with pixels being the assumed unit. These two values should be set to the dimensions of the largest image. Any image within the slideshow with width or height that exceeds the specified values will be clipped partially.

imagearray
Required
	An array containing the images you wish to show. Each array element contains 4 parts:

["path_to_image", "optional_url", "optional_linktarget", "optional_description"]

Enter a blank string ("") for the optional parts you do not wish to define. Here's a complete example:

imagearray: [
 ["pool.jpg"],
 ["http://mysite.com/cave.jpg", "http://cnn.com"],
 ["fruits.jpg", "http://cnn.com", "_new"],
 ["dog.jpg", "", "", "This image has a description but no hyperlink"] //<--no trailing comma after very last image element!
],

Notice how there should be no comma trailing the very last element!

displaymode
Required
	Sets the primary attributes of your slideshow, from whether this is an automatic or manual slideshow, the pause between slides, to the number of cycles before the slideshow stops in automatic mode. The syntax is:

displaymode: {type:'auto|manual', pause:milliseconds, cycles:0|integer, wraparound:true|false},

The "cycles" option when set to 0 will cause the slideshow to rotate perpetually in automatic mode, while any number larger than 0 means it will stop after x cycles.

The "warparound" option when set to false will disable the user's ability in manual mode to go past the very first and last slide when clicking on the navigation links to manually view the slides.

In the following, the slideshow will auto run and stop after 3 complete cycles:

displaymode: {type:'auto', pause:3000, cycles:3, wraparound:true},

In the following, the slideshow will be put in manual mode, with the ability to loop back to the beginning of the slideshow disabled:

displaymode: {type:'manual', pause:2000, cycles:0, wraparound:false},

In manual mode, you must define your own "prev" and "next" controls to let the user control the slideshow. See "togglerid" option below for more info.

persist
Defaults to false
	Boolean variable that decides whether the slideshow should remember and recall the last viewed slide within a browser session when the page is reloaded.
fadeduration

Defaults to 500
	The duration of the fade effect when transitioning from one image to the next, in milliseconds.

descreveal
Defaults to "ondemand"
	For a slideshow in which at least one image has a description associated with it, this option dictates the style of the Description Panel. The two choices are "ondemand" and "always". The former reveals the description when the user mouses over the slideshow, while the later shows a persistent description panel at the foot of the slideshow.

togglerid
Defaults to ""
	Use this option if you wish to create navigational controls that allow the user to explicitly move back and forth between slides, whether the slideshow is in "auto" or "manual" mode. Set "togglerid" to the ID of another DIV on your page that will house the navigation controls for the slideshow, ie:

togglerid: "slideshowtoggler"
The DIV on the page with the corresponding ID attribute will be parsed by the script for links carrying a certain CSS class.*/

var fadeSlideShow_descpanel={
	controls: [['http://www.strategicdads.com/x.png',7,7], ['http://www.strategicdads.com/restore.png',10,11], ['http://www.strategicdads.com/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)
}

//No need to edit beyond here...

jQuery.noConflict()

function fadeSlideShow(settingarg){
	this.setting=settingarg
	settingarg=null
	var setting=this.setting
	setting.fadeduration=setting.fadeduration? parseInt(setting.fadeduration) : 500
	setting.curimage=(setting.persist)? fadeSlideShow.routines.getCookie("gallery-"+setting.wrapperid) : 0
	setting.curimage=setting.curimage || 0 //account for curimage being null if cookie is empty
	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)
	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(){}
	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($){ //fire on DOM ready
		var setting=slideshow.setting
		var fullhtml=fadeSlideShow.routines.getFullHTML(setting.imagearray) //get full HTML of entire slideshow
		setting.$wrapperdiv=$('#'+setting.wrapperid).css({position:'relative', visibility:'visible', background:'url(http://www.strategicdads.com/loading.gif) no-repeat center', overflow:'hidden', width:setting.dimensions[0], height:setting.dimensions[1]}).empty() //main slideshow DIV
		if (setting.$wrapperdiv.length==0){ //if no wrapper DIV found
			alert("Error: DIV with ID \""+setting.wrapperid+"\" not found on page.")
			return
		}
		setting.$gallerylayers=$('<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:'url(http://www.strategicdads.com/loading.gif) no-repeat center'})
			.appendTo(setting.$wrapperdiv)
		var $loadingimg=$('<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)
		var $curimage=setting.$gallerylayers.html(fullhtml).find('img').hide().eq(setting.curimage) //prefill both layers with entire slideshow content, hide all images, and return current image
		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')
					$(this).css({visibility:'hidden'})
				})
			}
			else{ //display desc panel on demand (mouseover)
				setting.$wrapperdiv.bind('mouseenter', function(){slideshow.showhidedescpanel('show')})
				setting.$wrapperdiv.bind('mouseleave', function(){slideshow.showhidedescpanel('hide')})
			}
		}
		setting.$wrapperdiv.bind('mouseenter', function(){setting.ismouseover=true}) //pause slideshow mouseover
		setting.$wrapperdiv.bind('mouseleave', function(){setting.ismouseover=false})
		if ($curimage.get(0).complete){ //accounf for IE not firing image.onload
			$loadingimg.hide()
			slideshow.paginateinit($)
			slideshow.showslide(setting.curimage)
		}
		else{ //initialize slideshow when first image has fully loaded
			$loadingimg.hide()
			slideshow.paginateinit($)
			$curimage.bind('load', function(){slideshow.showslide(setting.curimage)})
		}
		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
				fadeSlideShow.routines.setCookie("gallery-"+setting.wrapperid, setting.curimage)
			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
		if (setting.displaymode.type=="auto" && setting.ismouseover && setting.currentstep<=setting.totalsteps){ //if slideshow in autoplay mode and mouse is over it, pause it
			setting.playtimer=setTimeout(function(){slideshow.showslide('next')}, setting.displaymode.pause)
			return
		}
		var totalimages=setting.imagearray.length
		var imgindex=(keyword=="next")? (setting.curimage<totalimages-1? setting.curimage+1 : 0)
			: (keyword=="prev")? (setting.curimage>0? setting.curimage-1 : totalimages-1)
			: Math.min(keyword, totalimages-1)
		var $slideimage=setting.$gallerylayers.eq(setting.bglayer).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.eq(setting.bglayer).css({zIndex:1000, opacity:0}) //background layer becomes foreground
			.stop().css({opacity:0}).animate({opacity:1}, setting.fadeduration, function(){ //Callback function after fade animation is complete:
				clearTimeout(setting.playtimer)
				try{
					setting.onslide.call(slideshow, setting.$gallerylayers.eq(setting.fglayer).get(0), setting.curimage)
				}catch(e){
					alert("Fade In Slideshow error: An error has occured somwhere in your code attached to the \"onslide\" event: "+e)
				}
				setting.currentstep+=1
				if (setting.displaymode.type=="auto"){
					if (setting.currentstep<=setting.totalsteps || setting.displaymode.cycles==0)
						setting.playtimer=setTimeout(function(){slideshow.showslide('next')}, setting.displaymode.pause)
				}
			}) //end callback function
		setting.$gallerylayers.eq(setting.fglayer).css({zIndex:999}) //foreground layer becomes background
		setting.fglayer=setting.bglayer
		setting.bglayer=(setting.bglayer==0)? 1 : 0
		setting.curimage=imgindex
		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+1 + "/" + totalimages)
	},

	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.$prev.css({opacity:(setting.curimage==0)? 0.4 : 1}).data('action', (setting.curimage==0)? 'none' : 'prev')
			setting.$next.css({opacity:(setting.curimage==setting.imagearray.length-1)? 0.4 : 1}).data('action', (setting.curimage==setting.imagearray.length-1)? 'none' : 'next')
			if (document.documentMode==8){ //in IE8 standards mode, apply opacity to inner image of link
				setting.$prev.find('img:eq(0)').css({opacity:(setting.curimage==0)? 0.4 : 1})
				setting.$next.find('img:eq(0)').css({opacity:(setting.curimage==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)
		$('<div class="descpanelbg"></div><div class="descpanelfg"></div>') //create inner nav panel DIVs
			.css({position:'absolute', left:0, top:0, width:setting.$descpanel.width()-8, padding:'4px'})
			.eq(0).css({background:'none', 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)


		}
	},


	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=/"
	}
}