diff --git a/cmd/mtwebmapper/main.go b/cmd/mtwebmapper/main.go
index 22f14c6..364f908 100644
--- a/cmd/mtwebmapper/main.go
+++ b/cmd/mtwebmapper/main.go
@@ -10,32 +10,12 @@ import (
 	"log"
 	"net"
 	"net/http"
-	"strings"
 
 	"bitbucket.org/s_l_teichmann/mtsatellite/common"
 
 	"github.com/gorilla/mux"
 )
 
-func ipsFromHosts(hosts string) ([]net.IP, error) {
-
-	ips := []net.IP{}
-
-	if len(hosts) == 0 { // Empty list: allow all hosts.
-		return ips, nil
-	}
-
-	for _, host := range strings.Split(hosts, ";") {
-		if hips, err := net.LookupIP(host); err != nil {
-			return nil, err
-		} else {
-			ips = append(ips, hips...)
-		}
-	}
-
-	return ips, nil
-}
-
 func main() {
 	var (
 		webPort     int
diff --git a/cmd/mtwebmapper/misc.go b/cmd/mtwebmapper/misc.go
new file mode 100644
index 0000000..85327b3
--- /dev/null
+++ b/cmd/mtwebmapper/misc.go
@@ -0,0 +1,36 @@
+// Copyright 2014 by Sascha L. Teichmann
+// Use of this source code is governed by the MIT license
+// that can be found in the LICENSE file.
+
+package main
+
+import (
+	"net"
+	"strings"
+)
+
+func ipsFromHosts(hosts string) ([]net.IP, error) {
+
+	ips := []net.IP{}
+
+	if len(hosts) == 0 { // Empty list: allow all hosts.
+		return ips, nil
+	}
+
+	for _, host := range strings.Split(hosts, ";") {
+		if hips, err := net.LookupIP(host); err != nil {
+			return nil, err
+		} else {
+			ips = append(ips, hips...)
+		}
+	}
+
+	return ips, nil
+}
+
+func min(a, b int) int {
+	if a < b {
+		return a
+	}
+	return b
+}
diff --git a/cmd/mtwebmapper/tilesupdater.go b/cmd/mtwebmapper/tilesupdater.go
index 6277d52..cadd3ff 100644
--- a/cmd/mtwebmapper/tilesupdater.go
+++ b/cmd/mtwebmapper/tilesupdater.go
@@ -205,13 +205,6 @@ func (tu *tileUpdater) doUpdates() {
 	}
 }
 
-func min(a, b int) int {
-	if a < b {
-		return a
-	}
-	return b
-}
-
 func updatePyramidTiles(level int, baseDir string, jobs chan xzm, done *sync.WaitGroup) {
 	defer done.Done()
 	scratch := image.NewRGBA(image.Rect(0, 0, 256, 256))