// -------------------------------------------------------------------

// Image Thumbnail Viewer II- By Dynamic Drive, available at: http://www.dynamicdrive.com

// Last updated: Feb 5th, 2007

// -------------------------------------------------------------------



var thumbnailviewer2={

enableTitle: true, //Should "title" attribute of link be used as description?

enableTransition: true, //Enable fading transition in IE?

hideimgmouseout: false, //Hide enlarged image when mouse moves out of anchor link? (if enlarged image is hyperlinked, always set to false!)



/////////////No need to edit beyond here/////////////////////////



iefilterstring: 'progid:DXImageTransform.Microsoft.GradientWipe(GradientSize=1.0 Duration=0.7)', //IE specific multimedia filter string

iefiltercapable: document.compatMode && window.createPopup? true : false, //Detect browser support for IE filters

preloadedimages:[], //array to preload enlarged images (ones set to display "onmouseover"

targetlinks:[], //array to hold participating links (those with rel="enlargeimage:initType")

alreadyrunflag: false, //flag to indicate whether init() function has been run already come window.onload



loadimage:function(linkobj){

var imagepath=linkobj.getAttribute("href") //Get URL to enlarged image

var showcontainer=document.getElementById(linkobj.getAttribute("rev").split("::")[0]) //Reference container on page to show enlarged image in

var dest=linkobj.getAttribute("rev").split("::")[1] //Get URL enlarged image should be linked to, if any

var description=(thumbnailviewer2.enableTitle && linkobj.getAttribute("title"))? linkobj.getAttribute("title") : "" //Get title attr

var imageHTML='<img src="'+imagepath+'" style="border-width: 0" />' //Construct HTML for enlarged image

if (typeof dest!="undefined") //Hyperlink the enlarged image?

imageHTML='<a href="'+dest+'">'+imageHTML+'</a>'

if (description!="") //Use title attr of the link as description?

imageHTML+='<br />'+description

if (this.iefiltercapable){ //Is this an IE browser that supports filters?

showcontainer.style.filter=this.iefilterstring

showcontainer.filters[0].Apply()

}

showcontainer.innerHTML=imageHTML

this.featureImage=showcontainer.getElementsByTagName("img")[0] //Reference enlarged image itself

this.featureImage.onload=function(){ //When enlarged image has completely loaded

if (thumbnailviewer2.iefiltercapable) //Is this an IE browser that supports filters?

showcontainer.filters[0].Play()

}

this.featureImage.onerror=function(){ //If an error has occurred while loading the image to show

if (thumbnailviewer2.iefiltercapable) //Is this an IE browser that supports filters?

showcontainer.filters[0].Stop()

}

},



hideimage:function(linkobj){

var showcontainer=document.getElementById(linkobj.getAttribute("rev").split("::")[0]) //Reference container on page to show enlarged image in

showcontainer.innerHTML=""

},





cleanup:function(){ //Clean up routine on page unload

if (this.featureImage){this.featureImage.onload=null; this.featureImage.onerror=null; this.featureImage=null}

this.showcontainer=null

for (var i=0; i<this.targetlinks.length; i++){

this.targetlinks[i].onclick=null

this.targetlinks[i].onmouseover=null

this.targetlinks[i].onmouseout=null

}

},



addEvent:function(target, functionref, tasktype){ //assign a function to execute to an event handler (ie: onunload)

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(){ //Initialize thumbnail viewer script

this.iefiltercapable=(this.iefiltercapable && this.enableTransition) //True or false: IE filters supported and is enabled by user

var pagelinks=document.getElementsByTagName("a")

for (var i=0; i<pagelinks.length; i++){ //BEGIN FOR LOOP

if (pagelinks[i].getAttribute("rel") && /enlargeimage:/i.test(pagelinks[i].getAttribute("rel"))){ //Begin if statement: Test for rel="enlargeimage"

var initType=pagelinks[i].getAttribute("rel").split("::")[1] //Get display type of enlarged image ("click" or "mouseover")

if (initType=="mouseover"){ //If type is "mouseover", preload the enlarged image for quicker display

this.preloadedimages[this.preloadedimages.length]=new Image()

this.preloadedimages[this.preloadedimages.length-1].src=pagelinks[i].href

pagelinks[i]["onclick"]=function(){ //Cancel default click action

return false

}

}

pagelinks[i]["on"+initType]=function(){ //Load enlarged image based on the specified display type (event)

thumbnailviewer2.loadimage(this) //Load image

return false

}

if (this.hideimgmouseout)

pagelinks[i]["onmouseout"]=function(){

thumbnailviewer2.hideimage(this)

}

this.targetlinks[this.targetlinks.length]=pagelinks[i] //store reference to target link

} //end if statement

} //END FOR LOOP





} //END init() function



}





if (document.addEventListener) //Take advantage of "DOMContentLoaded" event in select Mozilla/ Opera browsers for faster init

thumbnailviewer2.addEvent(document, function(){thumbnailviewer2.alreadyrunflag=1; thumbnailviewer2.init()}, "DOMContentLoaded") //Initialize script on page load

else if (document.all && document.getElementsByTagName("a").length>0){ //Take advantage of "defer" attr inside SCRIPT tag in IE for instant init

thumbnailviewer2.alreadyrunflag=1

thumbnailviewer2.init()

}

thumbnailviewer2.addEvent(window, function(){if (!thumbnailviewer2.alreadyrunflag) thumbnailviewer2.init()}, "load") //Default init method: window.onload

thumbnailviewer2.addEvent(window, function(){thumbnailviewer2.cleanup()}, "unload")