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



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



var imageHTML='<img src="'+imagepath+'" style="border-width: 0" width="125" height="125" alt="'+alttag+'"/>' //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")