/***********************************************
* 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.
***********************************************/

var globalMouseOverCheck = 0
 
var fadeimages=new Array()
//SET IMAGE PATHS. Extend or contract array as needed
//fadeimages[0]=["/images/homepage/11148ff.jpg", "/images/homepage/14.jpg", "/images/homepage/IWS_1640.jpg", "/images/homepage/2106-96.jpg", "/large.php?uid=716", "/large.php?uid=87204", "/large.php?uid=36895", "/large.php?uid=65805", "over 100,000 digital images free for use in education", "/collections"]//
fadeimages[0]=["/images/homepage/7485A.jpg", "/images/homepage/pc6213.jpg", "/images/homepage/ak8-1.jpg", "/images/homepage/1947P6.jpg", "/large.php?uid=53720", "/large.php?uid=73555", "/large.php?uid=47139", "/large.php?uid=91719", "over 100,000 digital images free for use in education", "/collections"]
fadeimages[1]=["/images/homepage/1867A.jpg", "/images/homepage/9216A.jpg", "/images/homepage/6568.jpg", "/images/homepage/9472.jpg", "/large.php?uid=57972", "/large.php?uid=111825", "/large.php?uid=59923", "/large.php?uid=110596", "half a century of British design launched online", "/news/?p=64"] 
//fadeimages[2]=["/images/homepage/posters104.jpg", "/images/homepage/posters2.jpg", "/images/homepage/posters4.jpg", "/images/homepage/posters24.jpg", "/large.php?uid=115916", "/large.php?uid=115925", "/large.php?uid=115752", "/large.php?uid=92477", "posters launched online from the Eckersley Archive", "/news/?p=55"]//
fadeimages[2]=["/images/homepage/si_0149.jpg", "/images/homepage/ch_0228_11.jpg", "/images/homepage/swlkt03.jpg", "/images/homepage/bt0004.jpg", "/large.php?uid=71822", "/large.php?uid=34835", "/large.php?uid=71475", "/large.php?uid=68226", "create your own personal collections using the lightbox", "/help/lightbox"]
//fadeimages[4]=["/images/homepage/over100000images.jpg", "/learning", "", "learn from curators and subject experts"] 


var fadebgcolor="#F1F1F2"

////NO need to edit beyond here/////////////
 
var fadearray=new Array() //array to cache fadeshow instances
var fadeclear=new Array() //array to cache corresponding clearinterval pointers
 
var dom=(document.getElementById) //modern dom browsers
var iebrowser=document.all;
 
// Added to force all shows to change at the same time.
var fadeshow0ready = 0;
//var fadeshow1ready = 0;
//var fadeshow2ready = 0;
//var fadeshow3ready = 0;
//var fadeshow4ready = 0;
//var page_loaded = 0;

function setready(slideshowid)
{
    eval("fadeshow"+slideshowid+"ready = 1")
    goifallready()
}

function turn_them_on(){

}

function goifallready(){
  if (fadeshow0ready == 1)
    {
	fadeshow0ready = 0;
	fadearray[0].rotateimage();
    }
}



function fadeshow(theimages, fadewidth, fadeheight, borderwidth, delay, pause, displayorder){
if (iebrowser&&dom||dom){
this.pausecheck=pause
this.mouseovercheck=0
this.delay=delay
this.degree=0 //initial opacity degree (10%)
this.curimageindex=0
this.nextimageindex=1
fadearray[fadearray.length]=this
this.slideshowid=fadearray.length-1
this.canvasbase="canvas"+this.slideshowid
this.curcanvas=this.canvasbase+"_0"
if (typeof displayorder!="undefined")
theimages.sort(function() {return 0.5 - Math.random();}) //thanks to Mike (aka Mwinter) :)
this.theimages=theimages
this.imageborder=parseInt(borderwidth)
this.postimages=new Array() //preload images
this.postimages1=new Array() //preload images
this.postimages2=new Array() //preload images
this.postimages3=new Array() //preload images
for (p=0;p<theimages.length;p++){
this.postimages[p]=new Image()
this.postimages[p].src=theimages[p][0]
this.postimages1[p]=new Image()
this.postimages1[p].src=theimages[p][1]
this.postimages2[p]=new Image()
this.postimages2[p].src=theimages[p][2]
this.postimages3[p]=new Image()
this.postimages3[p].src=theimages[p][3]
}
 
var fadewidth=fadewidth+this.imageborder*2
var fadeheight=fadeheight+this.imageborder*2
 
if (iebrowser&&dom||dom) //if IE5+ or modern browsers (ie: Firefox)
document.write('<div id="master'+this.slideshowid+'" style="position:relative;float:left;width:'+fadewidth+'px;height:'+fadeheight+'px;overflow:hidden;"><div id="'+this.canvasbase+'_0" style="position:absolute;width:'+fadewidth+'px;height:'+fadeheight+'px;top:0;left:0;filter:progid:DXImageTransform.Microsoft.alpha(opacity=10);opacity:0.1;-moz-opacity:0.1;-khtml-opacity:0.1;background-color:'+fadebgcolor+'"></div><div id="'+this.canvasbase+'_1" style="position:absolute;width:'+fadewidth+'px;height:'+fadeheight+'px;top:0;left:0;filter:progid:DXImageTransform.Microsoft.alpha(opacity=10);opacity:0.1;-moz-opacity:0.1;-khtml-opacity:0.1;background-color:'+fadebgcolor+'"></div></div>')
else
document.write('<div><img name="defaultslide'+this.slideshowid+'" src="'+this.postimages[0].src+'"></div>')
 
if (iebrowser&&dom||dom) //if IE5+ or modern browsers such as Firefox
this.startit()
else{
this.curimageindex++
setInterval("setready("+this.slideshowid+")", this.delay)
}
// end big if
}
}

function fadepic(obj){
if (obj.degree<100){
obj.degree+=10
if (obj.tempobj.filters&&obj.tempobj.filters[0]){
if (typeof obj.tempobj.filters[0].opacity=="number") //if IE6+
obj.tempobj.filters[0].opacity=obj.degree
else //else if IE5.5-
obj.tempobj.style.filter="alpha(opacity="+obj.degree+")"
}
else if (obj.tempobj.style.MozOpacity)
obj.tempobj.style.MozOpacity=obj.degree/101
else if (obj.tempobj.style.KhtmlOpacity)
obj.tempobj.style.KhtmlOpacity=obj.degree/100
else if (obj.tempobj.style.opacity&&!obj.tempobj.filters)
obj.tempobj.style.opacity=obj.degree/101
}
else{
clearInterval(fadeclear[obj.slideshowid])
obj.nextcanvas=(obj.curcanvas==obj.canvasbase+"_0")? obj.canvasbase+"_0" : obj.canvasbase+"_1"
obj.tempobj=iebrowser? iebrowser[obj.nextcanvas] : document.getElementById(obj.nextcanvas)
obj.populateslide(obj.tempobj, obj.nextimageindex)
obj.nextimageindex=(obj.nextimageindex<obj.postimages.length-1)? obj.nextimageindex+1 : 0
setTimeout("setready("+obj.slideshowid+")", obj.delay)
}
}
 
fadeshow.prototype.populateslide=function(picobj, picindex){
//Modified from the original to support 4 images with urls and one subtitle with URL
var slideHTML=""

if (this.theimages[picindex][4]!="")
slideHTML+='<a href="'+this.theimages[picindex][4]+'" >'
slideHTML+='<img src="'+this.postimages[picindex].src+'" border="'+this.imageborder+'px">'
if (this.theimages[picindex][4]!="")
slideHTML+='</a>'

if (this.theimages[picindex][5]!="")
slideHTML+='<a href="'+this.theimages[picindex][5]+'" >'
slideHTML+='<img src="'+this.postimages1[picindex].src+'" border="'+this.imageborder+'px">'
if (this.theimages[picindex][5]!="")
slideHTML+='</a>'

if (this.theimages[picindex][6]!="")
slideHTML+='<a href="'+this.theimages[picindex][6]+'" >'
slideHTML+='<img src="'+this.postimages2[picindex].src+'" border="'+this.imageborder+'px">'
if (this.theimages[picindex][6]!="")
slideHTML+='</a>'

if (this.theimages[picindex][7]!="")
slideHTML+='<a href="'+this.theimages[picindex][7]+'" >'
slideHTML+='<img src="'+this.postimages3[picindex].src+'" border="'+this.imageborder+'px">'
if (this.theimages[picindex][7]!="")
slideHTML+='</a>'


slideHTML+='<br><div style="position:relative;top:10px;left:5px">'
if (this.theimages[picindex][9]!="")
slideHTML+='<a class="homepagerotatingtitle" href="'+this.theimages[picindex][9]+'" >'
slideHTML+=this.theimages[picindex][8]
if (this.theimages[picindex][9]!="")
slideHTML+='</a>'


slideHTML+='</div>'
picobj.innerHTML=slideHTML
}
 
 
fadeshow.prototype.rotateimage=function(){
if (this.pausecheck==1) //if pause onMouseover enabled, cache object
var cacheobj=this
if (globalMouseOverCheck==1)
setTimeout(function(){cacheobj.rotateimage()}, 100)
else if (iebrowser&&dom||dom){
this.resetit()
var crossobj=this.tempobj=iebrowser? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas)
crossobj.style.zIndex++
fadeclear[this.slideshowid]=setInterval("fadepic(fadearray["+this.slideshowid+"])",50)
this.curcanvas=(this.curcanvas==this.canvasbase+"_0")? this.canvasbase+"_1" : this.canvasbase+"_0"
}
else{
var ns4imgobj=document.images['defaultslide'+this.slideshowid]
ns4imgobj.src=this.postimages[this.curimageindex].src
}
this.curimageindex=(this.curimageindex<this.postimages.length-1)? this.curimageindex+1 : 0
}
 
fadeshow.prototype.resetit=function(){
this.degree=10
var crossobj=iebrowser? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas)
if (crossobj.filters&&crossobj.filters[0]){
if (typeof crossobj.filters[0].opacity=="number") //if IE6+
crossobj.filters(0).opacity=this.degree
else //else if IE5.5-
crossobj.style.filter="alpha(opacity="+this.degree+")"
}
else if (crossobj.style.MozOpacity)
crossobj.style.MozOpacity=this.degree/101
else if (crossobj.style.KhtmlOpacity)
crossobj.style.KhtmlOpacity=this.degree/100
else if (crossobj.style.opacity&&!crossobj.filters)
crossobj.style.opacity=this.degree/101
}
 
 
fadeshow.prototype.startit=function(){
var crossobj=iebrowser? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas)
this.populateslide(crossobj, this.curimageindex)
if (this.pausecheck==1){ //IF SLIDESHOW SHOULD PAUSE ONMOUSEOVER
var cacheobj=this
var crossobjcontainer=iebrowser? iebrowser["master"+this.slideshowid] : document.getElementById("master"+this.slideshowid)
crossobjcontainer.onmouseover=function(){globalMouseOverCheck=1}
crossobjcontainer.onmouseout=function(){globalMouseOverCheck=0}
}
setready(this.slideshowid)
}