diff --git a/src/SemanticScuttle/Service/Bookmark2Tag.php b/src/SemanticScuttle/Service/Bookmark2Tag.php
index 07d75b9..2702acb 100644
--- a/src/SemanticScuttle/Service/Bookmark2Tag.php
+++ b/src/SemanticScuttle/Service/Bookmark2Tag.php
@@ -1,9 +1,6 @@
 <?php
-class SemanticScuttle_Service_Bookmark2Tag extends SemanticScuttle_Service
+class SemanticScuttle_Service_Bookmark2Tag extends SemanticScuttle_DbService
 {
-	var $tablename;
-
-
     /**
      * Returns the single service instance
      *
@@ -481,9 +478,5 @@ class SemanticScuttle_Service_Bookmark2Tag extends SemanticScuttle_Service
 		$this->db->sql_query($query);
 	}
 
-
-	// Properties
-	function getTableName()       { return $this->tablename; }
-	function setTableName($value) { $this->tablename = $value; }
 }
 ?>
diff --git a/src/SemanticScuttle/Service/CommonDescription.php b/src/SemanticScuttle/Service/CommonDescription.php
index ed1ffdd..92327c2 100644
--- a/src/SemanticScuttle/Service/CommonDescription.php
+++ b/src/SemanticScuttle/Service/CommonDescription.php
@@ -1,8 +1,6 @@
 <?php
-class SemanticScuttle_Service_CommonDescription extends SemanticScuttle_Service
+class SemanticScuttle_Service_CommonDescription extends SemanticScuttle_DbService
 {
-	var $tablename;
-
     /**
      * Returns the single service instance
      *
@@ -170,8 +168,5 @@ class SemanticScuttle_Service_CommonDescription extends SemanticScuttle_Service
 		$this->db->sql_query($query);
 	}
 
-	// Properties
-	function getTableName()       { return $this->tablename; }
-	function setTableName($value) { $this->tablename = $value; }
 }
 ?>
diff --git a/src/SemanticScuttle/Service/SearchHistory.php b/src/SemanticScuttle/Service/SearchHistory.php
index 7cffa83..b50d056 100644
--- a/src/SemanticScuttle/Service/SearchHistory.php
+++ b/src/SemanticScuttle/Service/SearchHistory.php
@@ -1,7 +1,6 @@
 <?php
-class SemanticScuttle_Service_SearchHistory extends SemanticScuttle_Service
+class SemanticScuttle_Service_SearchHistory extends SemanticScuttle_DbService
 {
-	var $tablename;
 	var $sizeSearchHistory;
 
     /**
@@ -127,8 +126,5 @@ class SemanticScuttle_Service_SearchHistory extends SemanticScuttle_Service
 		$this->db->sql_query($query);
 	}
 
-	// Properties
-	function getTableName()       { return $this->tablename; }
-	function setTableName($value) { $this->tablename = $value; }
 }
 ?>
diff --git a/src/SemanticScuttle/Service/Tag.php b/src/SemanticScuttle/Service/Tag.php
index 2a70948..c863640 100644
--- a/src/SemanticScuttle/Service/Tag.php
+++ b/src/SemanticScuttle/Service/Tag.php
@@ -1,8 +1,6 @@
 <?php
-class SemanticScuttle_Service_Tag extends SemanticScuttle_Service
+class SemanticScuttle_Service_Tag extends SemanticScuttle_DbService
 {
-	var $tablename;
-
     /**
      * Returns the single service instance
      *
@@ -95,7 +93,7 @@ class SemanticScuttle_Service_Tag extends SemanticScuttle_Service
 	}
 
 	function renameTag($uId, $oldName, $newName) {
-		$newname = $this->normalize($newname);
+		$newname = $this->normalize($newName);
 		
 		$query = 'UPDATE `'. $this->getTableName() .'`';
 		$query.= ' SET tag="'.$newName.'"';
@@ -126,8 +124,5 @@ class SemanticScuttle_Service_Tag extends SemanticScuttle_Service
 		$this->db->sql_query($query);
 	}
 
-	// Properties
-	function getTableName()       { return $this->tablename; }
-	function setTableName($value) { $this->tablename = $value; }
 }
 ?>
diff --git a/src/SemanticScuttle/Service/Tag2Tag.php b/src/SemanticScuttle/Service/Tag2Tag.php
index d283b57..41e26bf 100644
--- a/src/SemanticScuttle/Service/Tag2Tag.php
+++ b/src/SemanticScuttle/Service/Tag2Tag.php
@@ -1,8 +1,6 @@
 <?php
-class SemanticScuttle_Service_Tag2Tag extends SemanticScuttle_Service
+class SemanticScuttle_Service_Tag2Tag extends SemanticScuttle_DbService
 {
-	protected $tablename;
-
     /**
      * Returns the single service instance
      *
@@ -381,8 +379,5 @@ class SemanticScuttle_Service_Tag2Tag extends SemanticScuttle_Service
 		$tsts->deleteAll();
 	}
 
-	// Properties
-	function getTableName()       { return $this->tablename; }
-	function setTableName($value) { $this->tablename = $value; }
 }
 ?>
diff --git a/src/SemanticScuttle/Service/TagCache.php b/src/SemanticScuttle/Service/TagCache.php
index 95f3ea8..7f5a157 100644
--- a/src/SemanticScuttle/Service/TagCache.php
+++ b/src/SemanticScuttle/Service/TagCache.php
@@ -10,9 +10,8 @@
  * The table must be updated for each modification of
  * the relations between tags.
  */
-class SemanticScuttle_Service_TagCache extends SemanticScuttle_Service
+class SemanticScuttle_Service_TagCache extends SemanticScuttle_DbService
 {
-	var $tablename;
 
     /**
      * Returns the single service instance
@@ -354,8 +353,5 @@ class SemanticScuttle_Service_TagCache extends SemanticScuttle_Service
 		$this->db->sql_query($query);
 	}
 
-	// Properties
-	function getTableName()       { return $this->tablename; }
-	function setTableName($value) { $this->tablename = $value; }
 }
 ?>
diff --git a/src/SemanticScuttle/Service/TagStat.php b/src/SemanticScuttle/Service/TagStat.php
index 1bb7b05..0c0b70a 100644
--- a/src/SemanticScuttle/Service/TagStat.php
+++ b/src/SemanticScuttle/Service/TagStat.php
@@ -1,9 +1,6 @@
 <?php
-class SemanticScuttle_Service_TagStat extends SemanticScuttle_Service
+class SemanticScuttle_Service_TagStat extends SemanticScuttle_DbService
 {
-
-	var $tablename;
-
     /**
      * Returns the single service instance
      *
@@ -197,8 +194,5 @@ class SemanticScuttle_Service_TagStat extends SemanticScuttle_Service
 		$this->db->sql_query($query);
 	}
 
-	// Properties
-	function getTableName()       { return $this->tablename; }
-	function setTableName($value) { $this->tablename = $value; }
 }
 ?>
diff --git a/src/SemanticScuttle/Service/User.php b/src/SemanticScuttle/Service/User.php
index 49951d1..bc9ebfe 100644
--- a/src/SemanticScuttle/Service/User.php
+++ b/src/SemanticScuttle/Service/User.php
@@ -1,13 +1,11 @@
 <?php
-class SemanticScuttle_Service_User extends SemanticScuttle_Service
+class SemanticScuttle_Service_User extends SemanticScuttle_DbService
 {
-	protected $db;
 	protected $fields = array(
         'primary'   =>  'uId',
         'username'  =>  'username',
         'password'  =>  'password');
 	protected $profileurl;
-	protected $tablename;
 	protected $sessionkey;
 	protected $cookiekey;
 	protected $cookietime = 1209600; // 2 weeks
@@ -569,10 +567,6 @@ class SemanticScuttle_Service_User extends SemanticScuttle_Service
 		return $_SESSION['sessionStable'] == 1;
 	}
 
-	// Properties
-	function getTableName()       { return $this->tablename; }
-	function setTableName($value) { $this->tablename = $value; }
-
 	function getFieldName($field)         { return $this->fields[$field]; }
 	function setFieldName($field, $value) { $this->fields[$field] = $value; }