diff --git a/ui/Makefile b/ui/Makefile
index 8c45bd55..7702e641 100755
--- a/ui/Makefile
+++ b/ui/Makefile
@@ -1,7 +1,11 @@
+# TODO: add minification... (???)
 
+
+# rule for processing LESS files to CSS...
 %.css: %.less
 	lessc $< > $@
 
+# get all the .less files to process...
 CSS_FILES := $(patsubst %.less,%.css,$(wildcard *.less))
 
 all: $(CSS_FILES)
diff --git a/ui/base.js b/ui/base.js
index 730bf38c..3d7a2218 100755
--- a/ui/base.js
+++ b/ui/base.js
@@ -425,7 +425,7 @@ function extendRibbon(left, right, ribbon, no_compensate_shift){
 
 	// NOTE: this is fool-proof as it's based on relative visual 
 	// 		position...
-	var scale = getElementScale($('.ribbon-set'))
+	//var scale = getElementScale($('.ribbon-set'))
 	var l = parseFloat(ribbon.css('left'))
 	l = isNaN(l) ? 0 : l
 	// compensate for left shift...
diff --git a/ui/data.js b/ui/data.js
index f0a171ea..bab5133f 100755
--- a/ui/data.js
+++ b/ui/data.js
@@ -724,7 +724,6 @@ function convertDataGen1(data, cmp){
 // 		may leak to newly loaded images...
 function updateImage(image, gid, size){
 	image = $(image)
-	var title = ''
 	var oldgid = getImageGID(image)
 
 	if(oldgid == gid || gid == null){
@@ -745,7 +744,7 @@ function updateImage(image, gid, size){
 	if(img_data == null){
 		img_data = STUB_IMAGE_DATA
 	}
-	var name = img_data.path.split('/').pop()
+	//var name = img_data.path.split('/').pop()
 
 	// preview...
 	var preview = getBestPreview(gid, size)
diff --git a/ui/info.js b/ui/info.js
index 6dc0f701..e776ace1 100755
--- a/ui/info.js
+++ b/ui/info.js
@@ -121,7 +121,7 @@ function updateInlineImageInfo(image){
 
 
 	var gid = getImageGID(image)
-	var r = getRibbonIndex(getRibbon(image))
+	//var r = getRibbonIndex(getRibbon(image))
 	var data = IMAGES[gid]
 	var date = new Date(data.ctime * 1000)
 
diff --git a/ui/setup.js b/ui/setup.js
index ad1ee905..90993798 100755
--- a/ui/setup.js
+++ b/ui/setup.js
@@ -103,7 +103,7 @@ function setupDataBindings(viewer){
 
 		.on('shiftedImage', function(evt, image, from, to){
 			from = getRibbonIndex(from)
-			var ribbon = to
+			//var ribbon = to
 			to = getRibbonIndex(to)
 
 			var gid = getImageGID(image)