var thumbnailviewer={
enableTitle:true,
enableAnimation:true,
definefooter:'<div class="footerbar">Zavøít X</div>',
defineLoading:'<img src="/data/thumbnailviewer.gif" /> Loading Image...',
scrollbarwidth:16,
opacitystring:'filter:progid:DXImageTransform.Microsoft.alpha(opacity=10); -moz-opacity: 0.1; opacity: 0.1',
targetlinks:[],
createthumbBox:function(){
document.write('<div id="thumbBox" onClick="thumbnailviewer.closeit()"><div id="thumbImage"></div>'+this.definefooter+'</div>')
document.write('<div id="thumbLoading">'+this.defineLoading+'</div>')
this.thumbBox=document.getElementById("thumbBox")
this.thumbImage=document.getElementById("thumbImage")
this.thumbLoading=document.getElementById("thumbLoading")
this.standardbody=(document.compatMode=="CSS1Compat")?document.documentElement:document.body
},
centerDiv:function(divobj){
var ie=document.all && !window.opera
var dom=document.getElementById
var scroll_top=(ie)?this.standardbody.scrollTop:window.pageYOffset
var scroll_left=(ie)?this.standardbody.scrollLeft:window.pageXOffset
var docwidth=(ie)?this.standardbody.clientWidth:window.innerWidth-this.scrollbarwidth
var docheight=(ie)?this.standardbody.clientHeight:window.innerHeight
var docheightcomplete=(this.standardbody.offsetHeight>this.standardbody.scrollHeight)?this.standardbody.offsetHeight:this.standardbody.scrollHeight
var objwidth=divobj.offsetWidth
var objheight=divobj.offsetHeight
var topposition=(docheight>objheight)?scroll_top+docheight/2-objheight/2+"px":scroll_top+10+"px"
divobj.style.left=docwidth/2-objwidth/2+"px"
divobj.style.top=Math.floor(parseInt(topposition))+"px"
divobj.style.visibility="visible"
},
showthumbBox:function(){
thumbnailviewer.thumbLoading.style.visibility="hidden"
this.centerDiv(this.thumbBox)
if (this.enableAnimation){
this.currentopacity=0.1
this.opacitytimer=setInterval("thumbnailviewer.opacityanimation()",20)
}
},
loadimage:function(link){
if(this.thumbBox.style.visibility=="visible")this.closeit()
var imageHTML='<img src="'+link.getAttribute("href")+'" style="'+this.opacitystring+'" />'
if(this.enableTitle && link.getAttribute("title"))imageHTML+='<br />'+link.getAttribute("title")
this.centerDiv(this.thumbLoading)
this.thumbImage.innerHTML=imageHTML
this.featureImage=this.thumbImage.getElementsByTagName("img")[0]
if(this.featureImage.complete)thumbnailviewer.showthumbBox()
else{
this.featureImage.onload=function(){
thumbnailviewer.showthumbBox()
}
}
if(document.all && !window.createPopup)this.featureImage.src=link.getAttribute("href")
this.featureImage.onerror=function(){thumbnailviewer.thumbLoading.style.visibility="hidden"}
},
setimgopacity:function(value){
var targetobject=this.featureImage
if(targetobject.filters && targetobject.filters[0]){
if(typeof targetobject.filters[0].opacity=="number")
targetobject.filters[0].opacity=value*100
else targetobject.style.filter="alpha(opacity="+value*100+")"
}
else if(typeof targetobject.style.MozOpacity!="undefined")
targetobject.style.MozOpacity=value
else if(typeof targetobject.style.opacity!="undefined")
targetobject.style.opacity=value
else this.stopanimation()
},
opacityanimation:function(){
this.setimgopacity(this.currentopacity)
this.currentopacity+=0.1
if(this.currentopacity>1)
this.stopanimation()
},
stopanimation:function(){
if(typeof this.opacitytimer!="undefined")
clearInterval(this.opacitytimer)
},
closeit:function(){
this.stopanimation()
this.thumbBox.style.visibility="hidden"
this.thumbImage.innerHTML=""
this.thumbBox.style.left="-2000px"
this.thumbBox.style.top="-2000px"
},
cleanup:function(){
this.thumbLoading=null
if(this.featureImage)this.featureImage.onload=null
this.featureImage=null
this.thumbImage=null
for(var i=0;i<this.targetlinks.length;i++)this.targetlinks[i].onclick=null
this.thumbBox=null
},
dotask:function(target,functionref,tasktype){
var tasktype=(window.addEventListener)?tasktype:"on"+tasktype
if(target.addEventListener)
target.addEventListener(tasktype,functionref,false)
else if(target.attachEvent)target.attachEvent(tasktype,functionref)
},
init:function(){
if(!this.enableAnimation)this.opacitystring=""
var pagelinks=document.getElementsByTagName("a")
for(var i=0;i<pagelinks.length;i++){
if(pagelinks[i].getAttribute("rel") && pagelinks[i].getAttribute("rel")=="thumbnail"){
pagelinks[i].onclick=function(){
thumbnailviewer.stopanimation()
thumbnailviewer.loadimage(this)
return false
}
this.targetlinks[this.targetlinks.length]=pagelinks[i]
}
}
this.dotask(window,function(){if(thumbnailviewer.thumbBox.style.visibility=="visible")thumbnailviewer.centerDiv(thumbnailviewer.thumbBox)},"resize")
}
}
thumbnailviewer.createthumbBox()
thumbnailviewer.dotask(window,function(){thumbnailviewer.init()},"load")
thumbnailviewer.dotask(window,function(){thumbnailviewer.cleanup()},"unload")