diff --git a/ui/data.js b/ui/data.js
index 52025f2e..449af7d6 100755
--- a/ui/data.js
+++ b/ui/data.js
@@ -1216,7 +1216,7 @@ function makeNextFromListAction(get_closest, get_list, restrict_to_ribbon){
 		var next = get_closest(cur, ribbon)
 		var i = list.indexOf(next)+1
 
-		// we are before the first loaded bookmark, find the first...
+		// we are before the first loaded elem, find the first...
 		while((next == cur 
 					|| next == null 
 					|| getGIDOrder(next) < o) 
@@ -1226,7 +1226,7 @@ function makeNextFromListAction(get_closest, get_list, restrict_to_ribbon){
 			i++
 		}
 
-		// did not find any loaded bookmarks after...
+		// did not find any loaded elems after...
 		if(i >= list.length 
 				&& (next == null 
 					|| next == cur 
diff --git a/ui/tags.js b/ui/tags.js
index 3f8b3d60..eb9a5a97 100755
--- a/ui/tags.js
+++ b/ui/tags.js
@@ -93,8 +93,9 @@ function addTag(tags, gid, tagset, images){
 			tagset[tag] = set
 		}
 		if(set.indexOf(gid) < 0){
-			set.push(gid)
-			set.sort()
+			//set.push(gid)
+			//set.sort()
+			insertGIDToPosition(gid, set)
 		}
 
 		if(img_tags.indexOf(tag) < 0){
@@ -183,8 +184,17 @@ function selectByTags(tags, no_sort, tagset){
 	tags = typeof(tags) == typeof('str') ? [ tags ] : tags
 	tagset = tagset == null ? TAGS : tagset
 
-	var subtagset = []
+	// special case: a single tag...
+	if(tags.length == 1){
+		var loaded = getLoadedGIDs()
+		return tagset[tags[0]].filter(function(gid){
+			// skip unloaded gids...
+			return loaded.indexOf(gid) >= 0
+		})
+	}
+
 	var res = []
+	var subtagset = []
 
 	// populate the subtagset...
 	tags.map(function(tag){
@@ -292,6 +302,31 @@ function unmarkTagged(tags){
 }
 
 
+/*********************************************************************/
+
+// XXX this is a bit brain-dead and slow, but should be good for testing...
+function _listTagsAtGaps(tags){
+	var order = DATA.order
+	var list = selectByTags(tags)
+	var res = []
+
+	list.forEach(function(gid){
+		var i = order.indexOf(gid)
+
+		// add the current gid to the result iff one or both gids 
+		// adjacent to it are not in the list...
+		if(list.indexOf(order[i-1]) < 0 
+				|| list.indexOf(order[i+1]) < 0){
+			res.push(gid)
+		}
+	})
+
+	return res
+}
+
+
+
+
 /*********************************************************************/
 
 // cropping of tagged images...