netrender:

thumbnails on the web interface (resized with imagemagick or compatible if present, fullsize otherwise)
Clicking on the "show" link shows the thumbnail associated with one frame. Clicking on a second one shows all frames in the range. Clicking on more frames extends the range. Clicking on a thumbnail (or on the show link of a visible thumbnail) hides all thumbnails.

release/scripts/io/netrender/netrender.js

@@ -1,3 +1,7 @@
+lastFrame = -1
+maxFrame = -1
+minFrame = -1
+
 function request(url, data)
 {
 	xmlhttp = new XMLHttpRequest();
@@ -46,6 +50,70 @@ function balance_enable(id, value)
 	request("/balance_enable", "{" + id + ":" + value + "}");
 }
 
+function showThumb(job, frame)
+{
+	if (lastFrame != -1) {
+		if (maxFrame != -1 && minFrame != -1) {
+			if (frame >= minFrame && frame <= maxFrame) {
+				for(i = minFrame; i <= maxFrame; i=i+1) {
+					toggleThumb(job, i);
+				}
+				minFrame = -1;
+				maxFrame = -1;
+				lastFrame = -1;
+			} else if (frame > maxFrame) {
+				for(i = maxFrame+1; i <= frame; i=i+1) {
+					toggleThumb(job, i);
+				}
+				maxFrame = frame;
+				lastFrame = frame;
+			} else {
+				for(i = frame; i <= minFrame-1; i=i+1) {
+					toggleThumb(job, i);
+				}
+				minFrame = frame;
+				lastFrame = frame;
+			}
+		} else if (frame == lastFrame) {
+			toggleThumb(job, frame);
+		} else if (frame < lastFrame) {
+			minFrame = frame;
+			maxFrame = lastFrame;
+
+			for(i = minFrame; i <= maxFrame-1; i=i+1) {
+				toggleThumb(job, i);
+			}
+			lastFrame = frame;
+		} else {
+			minFrame = lastFrame;
+			maxFrame = frame;
+
+			for(i = minFrame+1; i <= maxFrame; i=i+1) {
+				toggleThumb(job, i);
+			}
+			lastFrame = frame;
+		}
+	} else {
+		toggleThumb(job, frame);
+	}
+}
+
+function toggleThumb(job, frame)
+{
+	img = document.images["thumb" + frame];
+	url = "/render_" + job + "_" + frame + ".jpg"
+
+	if (img.style.display == "block") {
+		img.style.display = "none";
+		img.src = "";
+		lastFrame = -1;
+	} else {
+		img.src = url;
+		img.style.display = "block";
+		lastFrame = frame;
+	}
+}
+
 function returnObjById( id )
 {
     if (document.getElementById)