diff --git a/phpgwapi/inc/class.accounts_ldap.inc.php b/phpgwapi/inc/class.accounts_ldap.inc.php
index 0201421218..29771dcfb7 100644
--- a/phpgwapi/inc/class.accounts_ldap.inc.php
+++ b/phpgwapi/inc/class.accounts_ldap.inc.php
@@ -602,25 +602,12 @@
 
 		function name2id($account_lid)
 		{
-			static $name_list;
-
-			if(@isset($name_list[$account_lid]) && $name_list[$account_lid])
-			{
-				return $name_list[$account_lid];
-			}
-
-			/* Don't bother searching for empty account_lid */
-			if(empty($account_lid))
-			{
-				return False;
-			}
-
 			$sri = ldap_search($this->ds, $this->group_context, '(&(cn=' . (string)$account_lid . ')(phpgwaccounttype=g))');
 			$allValues = ldap_get_entries($this->ds, $sri);
 
 			if (@$allValues[0]['gidnumber'][0])
 			{
-				$name_list[$account_lid] = (int)$allValues[0]['gidnumber'][0];
+				return (int)$allValues[0]['gidnumber'][0];
 			}
 
 			$sri = ldap_search($this->ds, $this->user_context, '(&(uid=' . (string)$account_lid . ')(phpgwaccounttype=u))');
@@ -629,29 +616,21 @@
 
 			if (@$allValues[0]['uidnumber'][0])
 			{
-				$name_list[$account_lid] = (int)$allValues[0]['uidnumber'][0];
+				return (int)$allValues[0]['uidnumber'][0];
 			}
 
-			return $name_list[$account_lid];
+			return False;
 		}
 
 		function id2name($account_id)
 		{
-			static $id_list;
-
-			if(isset($id_list[$account_id]))
-			{
-				return $id_list[$account_id];
-			}
-
 			$allValues = array();
 			$sri = ldap_search($this->ds, $this->group_context, '(&(gidnumber=' . (int)$account_id . ')(phpgwaccounttype=g))');
 			$allValues = ldap_get_entries($this->ds, $sri);
 
 			if (@$allValues[0]['cn'][0])
 			{
-				$id_list[$account_id] = $allValues[0]['cn'][0];
-				return $id_list[$account_id];
+				return $allValues[0]['cn'][0];
 			}
 
 			$allValues = array();
@@ -660,36 +639,20 @@
 
 			if (@$allValues[0]['uid'][0])
 			{
-				$id_list[$account_id] = $allValues[0]['uid'][0];
-				return $id_list[$account_id];
+				return $allValues[0]['uid'][0];
 			}
-
-			return $id_list[$account_id];
+			return False;
 		}
 
-		function get_type($accountid = '')
+		function get_type($account_id)
 		{
-			static $account_type;
-			$account_id = get_account_id($accountid);
-
-			if (isset($this->account_type) && $account_id == $this->account_id)
-			{
-				return $this->account_type;
-			}
-
-			if(@isset($account_type[$account_id]) && @$account_type[$account_id])
-			{
-				return $account_type[$account_id];
-			}
 			$allValues = array();
 			$sri = ldap_search($this->ds, $this->user_context, '(&(uidnumber=' . (int)$account_id . ')(phpgwaccounttype=u))');
 			$allValues = ldap_get_entries($this->ds, $sri);
 
 			if ($allValues[0]['phpgwaccounttype'][0])
 			{
-				$allValues[0]['phpgwaccounttype'][0];
-				$account_type[$account_id] = $allValues[0]['phpgwaccounttype'][0];
-				return $account_type[$account_id];
+				return $allValues[0]['phpgwaccounttype'][0];
 			}
 
 			$allValues = array();
@@ -698,10 +661,9 @@
 
 			if ($allValues[0]['phpgwaccounttype'][0])
 			{
-				$account_type[$account_id] = $allValues[0]['phpgwaccounttype'][0];
-				return $account_type[$account_id];
+				return $allValues[0]['phpgwaccounttype'][0];
 			}
-			return $account_type[$account_id];
+			return False;
 		}
 
 		/*
@@ -1064,16 +1026,6 @@
 
 		function get_account_name($accountid,&$lid,&$fname,&$lname)
 		{
-			static $account_name;
-
-			$account_id = get_account_id($accountid);
-			if(isset($account_name[$account_id]))
-			{
-				$lid = $account_name[$account_id]['lid'];
-				$fname = $account_name[$account_id]['fname'];
-				$lname = $account_name[$account_id]['lname'];
-				return;
-			}
 			$acct_type = $this->get_type($account_id);
 
 			/* search the dn for the given uid */
@@ -1089,34 +1041,17 @@
 
 			if($acct_type =='g')
 			{
-				$account_name[$account_id]['lid']   = $GLOBALS['phpgw']->translation->convert($allValues[0]['cn'][0],'utf-8');
-				$account_name[$account_id]['fname'] = $GLOBALS['phpgw']->translation->convert($allValues[0]['cn'][0],'utf-8');
-				$account_name[$account_id]['lname'] = lang('Group');
+				$lid   = $GLOBALS['phpgw']->translation->convert($allValues[0]['cn'][0],'utf-8');
+				$fname = $GLOBALS['phpgw']->translation->convert($allValues[0]['cn'][0],'utf-8');
+				$lname = lang('Group');
 			}
 			else
 			{
-				$account_name[$account_id]['lid']   = $GLOBALS['phpgw']->translation->convert($allValues[0]['uid'][0],'utf-8');
-				$account_name[$account_id]['fname'] = $GLOBALS['phpgw']->translation->convert($allValues[0]['givenname'][0],'utf-8');
-				$account_name[$account_id]['lname'] = $GLOBALS['phpgw']->translation->convert($allValues[0]['sn'][0],'utf-8');
+				$lid   = $GLOBALS['phpgw']->translation->convert($allValues[0]['uid'][0],'utf-8');
+				$fname = $GLOBALS['phpgw']->translation->convert($allValues[0]['givenname'][0],'utf-8');
+				$lname = $GLOBALS['phpgw']->translation->convert($allValues[0]['sn'][0],'utf-8');
 			}
-			$lid = $account_name[$account_id]['lid'];
-			$fname = $account_name[$account_id]['fname'];
-			$lname = $account_name[$account_id]['lname'];
-			return;
-		}
-
-		function get_account_data($account_id)
-		{
-			$this->account_id = $account_id;
-			$this->read_repository();
-
-			$data[$this->data['account_id']]['lid']       = $this->data['account_lid'];
-			$data[$this->data['account_id']]['firstname'] = $this->data['firstname'];
-			$data[$this->data['account_id']]['lastname']  = $this->data['lastname'];
-			$data[$this->data['account_id']]['fullname']  = $this->data['fullname'];
-			$data[$this->data['account_id']]['type']      = $this->data['account_type'];
-
-			return $data;
+			return !empty($lid);
 		}
 
 		function getDNforID($_accountid = '')
diff --git a/phpgwapi/inc/class.accounts_shared.inc.php b/phpgwapi/inc/class.accounts_shared.inc.php
index 6d0afd8bf8..d7bea23f8f 100644
--- a/phpgwapi/inc/class.accounts_shared.inc.php
+++ b/phpgwapi/inc/class.accounts_shared.inc.php
@@ -112,6 +112,39 @@
 			);
 		}
 
+		function get_list($_type='both',$start = '',$sort = '', $order = '', $query = '', $offset = '')
+		{
+			static $account_list;
+
+			// For XML-RPC
+			if (is_array($_type))
+			{
+				$p      = $_type[0];
+				$_type  = $p['type'];
+				$start  = $p['start'];
+				$order  = $p['order'];
+				$query  = $p['query'];
+				$offset = $p['offset'];
+			}
+			else
+			{
+				$p = array(
+					'type' => $_type,
+					'start' => $start,
+					'order' => $order,
+					'query' => $query,
+					'offset' => $offset
+				);
+			}
+			$serial = serialize($p);
+
+			if (isset($account_list[$serial]))
+			{
+				return $account_list[$serial];
+			}
+			return $account_list[$serial] = accounts_::get_list($_type,$start,$sort,$order,$query,$offset);
+		}
+
 		function is_expired()
 		{
 			if ($this->data['expires'] != -1 && $this->data['expires'] < time())
@@ -147,14 +180,21 @@
 
 		function membership($accountid = '')
 		{
+			static $membership_list;
+
 			$account_id = get_account_id($accountid);
 
+			if (isset($membership_list[$account_id]))
+			{
+				return $membership_list[$account_id];
+			}
+
 			$security_equals = Array();
 			$security_equals = $GLOBALS['phpgw']->acl->get_location_list_for_id('phpgw_group', 1, $account_id);
 
 			if ($security_equals == False)
 			{
-				return False;
+				return $membership_list[$account_id] = False;
 			}
 
 			$this->memberships = Array();
@@ -165,7 +205,7 @@
 				$this->memberships[] = Array('account_id' => $groups, 'account_name' => $this->id2name($groups));
 			}
 
-			return $this->memberships;
+			return $membership_list[$account_id] = $this->memberships;
 		}
 
 		function member($accountid = '')
@@ -244,6 +284,96 @@
 			return $nextid;
 		}
 
+		function name2id($account_lid)
+		{
+			static $name_list;
+
+			if(@isset($name_list[$account_lid]) && $name_list[$account_lid])
+			{
+				return $name_list[$account_lid];
+			}
+
+			/* Don't bother searching for empty account_lid */
+			if(empty($account_lid))
+			{
+				return False;
+			}
+			return $name_list[$account_lid] = accounts_::name2id($account_lid);
+		}
+
+		function id2name($account_id)
+		{
+			static $id_list;
+
+			if (! $account_id)
+			{
+				return False;
+			}
+
+			if($id_list[$account_id])
+			{
+				return $id_list[$account_id];
+			}
+			return $id_list[$account_id] = accounts_::id2name($account_id);
+		}
+
+		function get_type($accountid)
+		{
+			static $account_type;
+			$account_id = get_account_id($accountid);
+
+			if (isset($this->account_type) && $account_id == $this->account_id)
+			{
+				return $this->account_type;
+			}
+
+			if(@isset($account_type[$account_id]) && @$account_type[$account_id])
+			{
+				return $account_type[$account_id];
+			}
+			elseif($account_id == '')
+			{
+				return False;
+			}
+			return $account_type[$account_id] = accounts_::get_type($account_id);
+		}
+
+		function get_account_name($accountid,&$lid,&$fname,&$lname)
+		{
+			static $account_name;
+
+			$account_id = get_account_id($accountid);
+			if(isset($account_name[$account_id]))
+			{
+				$lid = $account_name[$account_id]['lid'];
+				$fname = $account_name[$account_id]['fname'];
+				$lname = $account_name[$account_id]['lname'];
+				return $account_name[$account_id] !== False;
+			}
+			$Ok = accounts_::get_account_name($accountid,&$lid,&$fname,&$lname);
+
+			$account_name[$account_id] = array(
+				'lid' => $lid,
+				'fname' => $fname,
+				'lname' => $lname,
+			);
+			return $Ok;
+		}
+
+		function get_account_data($account_id)
+		{
+			$this->account_id = $account_id;
+			$this->read_repository();
+
+			$data[$this->data['account_id']]['lid']       = $this->data['account_lid'];
+			$data[$this->data['account_id']]['firstname'] = $this->data['firstname'];
+			$data[$this->data['account_id']]['lastname']  = $this->data['lastname'];
+			$data[$this->data['account_id']]['fullname']  = $this->data['fullname'];
+			$data[$this->data['account_id']]['type']      = $this->data['account_type'];
+
+			return $data;
+		}
+
 		function accounts_popup($app)
 		{
 			$group_id = get_var('group_id',array('GET','POST'));
@@ -257,7 +387,7 @@
 			{
 				$GLOBALS['query'] = $_POST['query'];
 			}
-			
+
 			if(isset($_POST['start']))
 			{
 				$start = (int)$_POST['start'];
diff --git a/phpgwapi/inc/class.accounts_sql.inc.php b/phpgwapi/inc/class.accounts_sql.inc.php
index 0322dee5c1..ecce9efd33 100644
--- a/phpgwapi/inc/class.accounts_sql.inc.php
+++ b/phpgwapi/inc/class.accounts_sql.inc.php
@@ -130,17 +130,6 @@
 
 		function get_list($_type='both',$start = '',$sort = '', $order = '', $query = '', $offset = '')
 		{
-			// For XML-RPC
-/*			if (is_array($_type))
-			{
-				$p      = $_type;
-				$_type  = $p[0]['type'];
-				$start  = $p[0]['start'];
-				$order  = $p[0]['order'];
-				$query  = $p[0]['query'];
-				$offset = $p[0]['offset'];
-			}
-*/
 			if (! $sort)
 			{
 				$sort = "DESC";
@@ -219,89 +208,35 @@
 
 		function name2id($account_lid)
 		{
-			static $name_list;
-
-			if (! $account_lid)
-			{
-				return False;
-			}
-
-			if($name_list[$account_lid] && $name_list[$account_lid] != '')
-			{
-				return $name_list[$account_lid];
-			}
-
 			$this->db->query("SELECT account_id FROM phpgw_accounts WHERE account_lid='".$this->db->db_addslashes($account_lid)."'",__LINE__,__FILE__);
 			if($this->db->num_rows())
 			{
 				$this->db->next_record();
-				$name_list[$account_lid] = (int)$this->db->f('account_id');
+				return (int)$this->db->f('account_id');
 			}
-			else
-			{
-				$name_list[$account_lid] = False;
-			}
-			return $name_list[$account_lid];
+			return False;
 		}
 
 		function id2name($account_id)
 		{
-			static $id_list;
-
-			if (! $account_id)
-			{
-				return False;
-			}
-
-			if($id_list[$account_id])
-			{
-				return $id_list[$account_id];
-			}
-
 			$this->db->query('SELECT account_lid FROM phpgw_accounts WHERE account_id=' . (int)$account_id,__LINE__,__FILE__);
 			if($this->db->num_rows())
 			{
 				$this->db->next_record();
-				$id_list[$account_id] = $this->db->f('account_lid');
+				return $this->db->f('account_lid');
 			}
-			else
-			{
-				$id_list[$account_id] = False;
-			}
-			return $id_list[$account_id];
+			return False;
 		}
 
-		function get_type($accountid)
+		function get_type($account_id)
 		{
-			static $account_type;
-			$account_id = get_account_id($accountid);
-			
-			if (isset($this->account_type) && $account_id == $this->account_id)
-			{
-				return $this->account_type;
-			}
-
-			if(@isset($account_type[$account_id]) && @$account_type[$account_id])
-			{
-				return $account_type[$account_id];
-			}
-			elseif($account_id == '')
-			{
-				return False;
-			}
-			$this->db->Halt_On_Error = 'no';
-			$this->db->query('SELECT account_type FROM phpgw_accounts WHERE account_id=' . $account_id,__LINE__,__FILE__);
+			$this->db->query('SELECT account_type FROM phpgw_accounts WHERE account_id=' . (int)$account_id,__LINE__,__FILE__);
 			if ($this->db->num_rows())
 			{
 				$this->db->next_record();
-				$account_type[$account_id] = $this->db->f('account_type');
+				return $this->db->f('account_type');
 			}
-			else
-			{
-				$account_type[$account_id] = False;
-			}
-			$this->db->Halt_On_Error = 'yes';
-			return $account_type[$account_id];
+			return False;
 		}
 
 		function exists($account_lid)
@@ -457,40 +392,17 @@
 
 		function get_account_name($accountid,&$lid,&$fname,&$lname)
 		{
-			static $account_name;
-
-			$account_id = get_account_id($accountid);
-			if(isset($account_name[$account_id]))
-			{
-				$lid = $account_name[$account_id]['lid'];
-				$fname = $account_name[$account_id]['fname'];
-				$lname = $account_name[$account_id]['lname'];
-				return;
-			}
 			$db = $GLOBALS['phpgw']->db;
 			$db->query('SELECT account_lid,account_firstname,account_lastname FROM phpgw_accounts WHERE account_id=' . (int)$account_id,__LINE__,__FILE__);
-			$db->next_record();
-			$account_name[$account_id]['lid']   = $db->f('account_lid');
-			$account_name[$account_id]['fname'] = $db->f('account_firstname');
-			$account_name[$account_id]['lname'] = $db->f('account_lastname');
-			$lid   = $account_name[$account_id]['lid'];
-			$fname = $account_name[$account_id]['fname'];
-			$lname = $account_name[$account_id]['lname'];
-			return;
-		}
+			if (!$db->next_record())
+			{
+				return False;
+			}
+			$lid   = $db->f('account_lid');
+			$fname = $db->f('account_firstname');
+			$lname = $db->f('account_lastname');
 
-		function get_account_data($account_id)
-		{
-			$this->account_id = $account_id;
-			$this->read_repository();
-
-			$data[$this->data['account_id']]['lid']       = $this->data['account_lid'];
-			$data[$this->data['account_id']]['firstname'] = $this->data['firstname'];
-			$data[$this->data['account_id']]['lastname']  = $this->data['lastname'];
-			$data[$this->data['account_id']]['fullname']  = $this->data['fullname'];
-			$data[$this->data['account_id']]['type']      = $this->data['account_type'];
-
-			return $data;
+			return True;
 		}
 	}
 	/*!