/* 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 backgroundColor = 'white'
var orange = '#e46f1c'
var grey = '#c0c0c0'

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)
}

//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(){}
	if (setting.displaymode.randomize) //randomly shuffle order of images?
		setting.imagearray.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($) { //fire on DOM ready
	    var setting = slideshow.setting
	    var fullhtml = fadeSlideShow.routines.getFullHTML(setting.imagearray) //get full HTML of entire slideshow
	    setting.$wrapperdiv = $('#' + setting.wrapperid).css({ position: 'relative', visibility: 'visible', background: 'black', overflow: 'hidden', width: setting.dimensions[0], height: setting.dimensions[1] }).empty() //main slideshow DIV
	    if (setting.$wrapperdiv.length == 0) { //if no wrapper DIV found
	        alert("Error: DIV with ID \"" + setting.wrapperid + "\" not found on page.")
	        return
	    }
	    setting.$gallerylayers = $('<div class="gallerylayer"></div><div class="gallerylayer"></div>') //two stacked DIVs to display the actual slide
			.css({ position: 'absolute', left: 0, top: 0, width: '100%', height: '100%', background: backgroundColor })
			.appendTo(setting.$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.$wrapperdiv.bind('mouseleave', function() { setting.ismouseover = false; }) //start playing if in playmode
	    if ($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())
        }

        if (setting.$playmode == "paused")//added by bk 18-11-10
            setting.ismouseover = true;
    },

    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: 998, 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: 997 }) //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.$status.html(setting.curimage + 1 + "/" + totalimages)
        if (setting.$desc) //if desc container defined //added by bk 18-11-10
            setting.$desc.html(setting.imagearray[imgindex][4])

        //put orange border on active thumbnail //added by bk 18-11-10
        setting.$togglerdiv.find('.go1').css({ borderColor: grey })
        setting.$togglerdiv.find('.go2').css({ borderColor: grey })
        setting.$togglerdiv.find('.go3').css({ borderColor: grey })
        setting.$togglerdiv.find('.go4').css({ borderColor: grey })
        setting.$togglerdiv.find('.go5').css({ borderColor: grey })
        setting.$togglerdiv.find('.go6').css({ borderColor: grey })
        setting.$togglerdiv.find('.go7').css({ borderColor: grey })
        setting.$togglerdiv.find('.go8').css({ borderColor: grey })
        setting.$togglerdiv.find('.go9').css({ borderColor: grey })
        setting.$togglerdiv.find('.go10').css({ borderColor: grey })
        setting.$togglerdiv.find('.go' + (imgindex + 1)).css({ borderColor: orange })

    },

    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.$togglerdiv.find('.next').data('action', 'next')
            setting.$playpause = setting.$togglerdiv.find('.play-pause').data('action', 'togglepause')
            setting.$go1 = setting.$togglerdiv.find('.go1').data('action', 0)
            setting.$go2 = setting.$togglerdiv.find('.go2').data('action', 1)
            setting.$go3 = setting.$togglerdiv.find('.go3').data('action', 2)
            setting.$go4 = setting.$togglerdiv.find('.go4').data('action', 3)
            setting.$go5 = setting.$togglerdiv.find('.go5').data('action', 4)
            setting.$go6 = setting.$togglerdiv.find('.go6').data('action', 5)
            setting.$go7 = setting.$togglerdiv.find('.go7').data('action', 6)
            setting.$go8 = setting.$togglerdiv.find('.go8').data('action', 7)
            setting.$go9 = setting.$togglerdiv.find('.go9').data('action', 8)
            setting.$go10 = setting.$togglerdiv.find('.go10').data('action', 9)
            setting.$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.$playpause.add().click(function(e) { //assign click behavior to play/pause control
                if (setting.$playmode == "paused") {
                    setting.$playmode = "playing"
                    setting.ismouseover = false
                    document.getElementById("PlayPauseButton").src = "images/pause.jpg";
                } else {
                    setting.$playmode = "paused"
                    setting.ismouseover = true
                    document.getElementById("PlayPauseButton").src = "images/play.jpg";
                }
                e.preventDefault()
            })
            setting.$go1.add().click(function(e) { //assign click behavior to go1 control
                var $target = $(this)
                setting.ismouseover = false;
                slideshow.navigate($target.data('action'))
                e.preventDefault()
            })
            setting.$go2.add().click(function(e) { //assign click behavior to go2 control
                var $target = $(this)
                setting.ismouseover = false;
                slideshow.navigate($target.data('action'))
                e.preventDefault()
            })
            setting.$go3.add().click(function(e) { //assign click behavior to go3 control
                var $target = $(this);
                setting.ismouseover = false;
                slideshow.navigate($target.data('action'))
                e.preventDefault()
            })
            setting.$go4.add().click(function(e) { //assign click behavior to go4 control
                var $target = $(this)
                setting.ismouseover = false;
                slideshow.navigate($target.data('action'))
                e.preventDefault()
            })
            //assign click behavior to go5 control
            setting.$go5.add().click(function(e) { var $target = $(this); setting.ismouseover = false; slideshow.navigate($target.data('action')); e.preventDefault(); })
            //assign click behavior to go6 control
            setting.$go6.add().click(function(e) { var $target = $(this); setting.ismouseover = false; slideshow.navigate($target.data('action')); e.preventDefault(); })
            //assign click behavior to go7 control
            setting.$go7.add().click(function(e) { var $target = $(this); setting.ismouseover = false; slideshow.navigate($target.data('action')); e.preventDefault(); })
            //assign click behavior to go8 control
            setting.$go8.add().click(function(e) { var $target = $(this); setting.ismouseover = false; slideshow.navigate($target.data('action')); e.preventDefault(); })
            //assign click behavior to go9 control
            setting.$go9.add().click(function(e) { var $target = $(this); setting.ismouseover = false; slideshow.navigate($target.data('action')); e.preventDefault(); })
            //assign click behavior to go10 control
            setting.$go10.add().click(function(e) { var $target = $(this); setting.ismouseover = false; slideshow.navigate($target.data('action')); e.preventDefault(); })

            setting.$status = setting.$togglerdiv.find('.status')
            setting.$desc = setting.$togglerdiv.find('.desc')//added by bk 18-11-10
        }
    },

    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=$('<div class="fadeslidedescdiv"></div>')
			.css({position:'absolute', visibility:'hidden', width:'100%', left:0, top:setting.dimensions[1], font:fadeSlideShow_descpanel.fontStyle, zIndex:'999'})
			.appendTo(setting.$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:'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)


		}
	},


	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=/"
	}
}


function SlidePause() {
    document.getElementById("PlayPauseLink").href = "javascript:SlidePlay()";
    document.getElementById("PlayPauseButton").src = "images/play.jpg";
   
}

function SlidePlay() {
    document.getElementById("PlayPauseLink").href = "javascript:SlidePause()";
    document.getElementById("PlayPauseButton").src = "images/pause.jpg";
}