diff --git a/README.md b/README.md
index 238574e..8fe69f0 100644
--- a/README.md
+++ b/README.md
@@ -13,19 +13,15 @@ Write this code in your lua file.
 ```lua
 coldbase = colddb.Colddb("mydb")
 ```
-2. add an extra folder to the directory. every new file will be added to the global tag(folder).
-```lua
-coldbase.add_global_tag("ips")
-```
-3. store key item(this key has no value)
+2. store key item(this key has no value)
 ```lua
 coldbase.set_key("MyKey")
 ```
-4. store key-value item
+3. store key-value item
 ```lua
 coldbase.set("MyKeyAndValue", "Hello world")
 ```
-5. retrieve items (get_key's callback(arg) will return true, false, or nil)
+4. retrieve items (get_key's callback(arg) will return true, false, or nil)
 ```lua
 coldbase.get("MyKeyAndValue", nil, function(arg)
 	if arg then
@@ -40,35 +36,35 @@ coldbase.get_key("MyKey", nil, function(arg)
 	end
 end)
 ```
-6. delete key(file) this function works on both keys and key-value keys.
+5. delete key(file) this function works on both keys and key-value keys.
 ```lua
 coldbase.remove("MyKeyAndValue")
 ```
-7. if add_to_mem_pool is true(true by default). keys are stored in a weak lua table(memory) it will be removed by the gc if its not in-use. Storing data in memory is to prevent the database from constantly loading up data from files.
+6. if add_to_mem_pool is true(true by default). keys are stored in a weak lua table(memory) it will be removed by the gc if its not in-use. Storing data in memory is to prevent the database from constantly loading up data from files.
 ```lua
 coldbase.add_to_mem_pool = true
 ```
-8. if indexes is true(false by default). When a key file is created an indexing file stores the key for look-ups. this makes it possible to iterate through keys.
+7. if indexes is true(false by default). When a key file is created an indexing file stores the key for look-ups. this makes it possible to iterate through keys.
 ```lua
 coldbase.indexes = true
 ```
-9. only if coldbase.indexes is true. returns the amount of keys that are in the indexing file.
+8. only if coldbase.indexes is true. returns the amount of keys that are in the indexing file.
 ```lua
 coldbase.get_count()
 ```
-10. only if coldbase.indexes is true. iterates through the indexing file(breaks and ends if it reaches the end of the file).
+9. only if coldbase.indexes is true. iterates through the indexing file(breaks and ends if it reaches the end of the file).
 ```lua
 coldbase.iterate_index_table(nil, func_list_keys, nil)
 ```
-11. adds a folder which can be used in other functions that have tag_name arg.
+10. adds a folder which can be used in other functions that have tag_name arg.
 ```lua
 coldbase.add_tag("Extra_Folder", {"Extra", "Folder"})
 ```
-12. returns the tag name if the tag does not exists it creates one.
+11. returns the tag name if the tag does not exists it creates one.
 ```lua
 coldbase.get_or_add_tag("Extra_Folder", {"Extra", "Folder"})
 ```
-13. remove tag by name.
+12. remove tag by name.
 ```lua
 coldbase.remove_tag("Extra_Folder")
 ```
diff --git a/colddb.lua b/colddb.lua
index 7e73a55..86432b4 100644
--- a/colddb.lua
+++ b/colddb.lua
@@ -185,22 +185,6 @@ function colddb.Colddb(directory)
 		end)
 	end
 	
-	self.add_global_tag = function(tag)
-		local t = ""
-		if type(tag) == "table" then
-			for index in pairs(tag) do
-				t = string.format("%s%s/", t, index)
-			end
-		else
-			t = string.format("%s/", tag)
-		end
-		self.db.global_tag = string.format("%s%s", self.db.global_tag, t)
-		self.db.directory = string.format("%s/%s", self.db.directory, t)
-		if not createDir(self.db.directory) then
-			error(string.format("%s is not a directory.", self.db.directory))
-		end
-	end
-	
 	self.add_tag = function(name, tag)
 		local t = ""
 		if not self.db.tags[name] then