// ------------------------------------------------------------------- // Image Thumbnail Viewer Script- By Dynamic Drive, available at: http://www.dynamicdrive.com // Last updated: Jan 22nd, 2007 // ------------------------------------------------------------------- var thumbnailviewer={ enableTitle: true, //Should "title" attribute of link be used as description? enableAnimation: true, //Enable fading animation? definefooter: '
', //Define HTML for footer interface defineLoading: '', //Define HTML for "loading" div /////////////No need to edit beyond here///////////////////////// scrollbarwidth: 16, opacitystring: 'filter:progid:DXImageTransform.Microsoft.alpha(opacity=10); -moz-opacity: 0.1; opacity: 0.1', targetlinks:[], //Array to hold links with rel="thumbnail" createthumbBox:function(){ //write out HTML for Image Thumbnail Viewer plus loading div document.write('
'+this.definefooter+'
') document.write('
'+this.defineLoading+'
') this.thumbBox=document.getElementById("thumbBox") this.thumbImage=document.getElementById("thumbImage") //Reference div that holds the shown image this.thumbLoading=document.getElementById("thumbLoading") //Reference "loading" div that will be shown while image is fetched this.standardbody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body //create reference to common "body" across doctypes }, centerDiv:function(divobj){ //Centers a div element on the page 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 //Full scroll height of document var objwidth=divobj.offsetWidth //width of div element var objheight=divobj.offsetHeight //height of div element var topposition=(docheight>objheight)? scroll_top+docheight/2-objheight/2+"px" : scroll_top+10+"px" //Vertical position of div element: Either centered, or if element height larger than viewpoint height, 10px from top of viewpoint divobj.style.left=docwidth/2-objwidth/2+"px" //Center div element horizontally divobj.style.top=Math.floor(parseInt(topposition))+"px" divobj.style.visibility="visible" }, showthumbBox:function(){ //Show ThumbBox div this.centerDiv(this.thumbBox) if (this.enableAnimation){ //If fading animation enabled this.currentopacity=0.1 //Starting opacity value this.opacitytimer=setInterval("thumbnailviewer.opacityanimation()", 20) } }, loadimage:function(link){ //Load image function that gets attached to each link on the page with rel="thumbnail" if (this.thumbBox.style.visibility=="visible") //if thumbox is visible on the page already this.closeit() //Hide it first (not doing so causes triggers some positioning bug in Firefox var imageHTML='' //Construct HTML for shown image if (this.enableTitle && link.getAttribute("title")) //Use title attr of the link as description? imageHTML+='
'+link.getAttribute("title") this.centerDiv(this.thumbLoading) //Center and display "loading" div while we set up the image to be shown this.thumbImage.innerHTML=imageHTML //Populate thumbImage div with shown image's HTML (while still hidden) this.featureImage=this.thumbImage.getElementsByTagName("img")[0] //Reference shown image itself this.featureImage.onload=function(){ //When target image has completely loaded thumbnailviewer.thumbLoading.style.visibility="hidden" //Hide "loading" div thumbnailviewer.showthumbBox() //Display "thumbbox" div to the world! } if (document.all && !window.createPopup) //Target IE5.0 browsers only. Address IE image cache not firing onload bug: panoramio.com/blog/onload-event/ this.featureImage.src=link.getAttribute("href") this.featureImage.onerror=function(){ //If an error has occurred while loading the image to show thumbnailviewer.thumbLoading.style.visibility="hidden" //Hide "loading" div, game over } }, setimgopacity:function(value){ //Sets the opacity of "thumbimage" div per the passed in value setting (0 to 1 and in between) var targetobject=this.featureImage if (targetobject.filters && targetobject.filters[0]){ //IE syntax if (typeof targetobject.filters[0].opacity=="number") //IE6 targetobject.filters[0].opacity=value*100 else //IE 5.5 targetobject.style.filter="alpha(opacity="+value*100+")" } else if (typeof targetobject.style.MozOpacity!="undefined") //Old Mozilla syntax targetobject.style.MozOpacity=value else if (typeof targetobject.style.opacity!="undefined") //Standard opacity syntax targetobject.style.opacity=value else //Non of the above, stop opacity animation this.stopanimation() }, opacityanimation:function(){ //Gradually increase opacity 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(){ //Close "thumbbox" div function this.stopanimation() this.thumbBox.style.visibility="hidden" this.thumbImage.innerHTML="" this.thumbBox.style.left="-2000px" this.thumbBox.style.top="-2000px" }, cleanup:function(){ //Clean up routine on page unload this.thumbLoading=null if (this.featureImage) this.featureImage.onload=null this.featureImage=null this.thumbImage=null for (var i=0; i