+copyPrototype(DDImageUploader, DDFileUploaderBase);
+
+DDImageUploader.prototype.indexExistingSlides = function() {
+ var images = this.dropbox.getElementsByTagName('img');
+ var i;
+ var index = [];
+ for (i=0 ; i < images.length ; i++) {
+ if (isThumbnail.test(images[i].src)) {
+ index[images[i].src] = images[i]; }
+ }
+ return index;
+};