Index: branches/RC/core/kernel/db/db_event_handler.php
===================================================================
diff -u -N -r11724 -r11742
--- branches/RC/core/kernel/db/db_event_handler.php	(.../db_event_handler.php)	(revision 11724)
+++ branches/RC/core/kernel/db/db_event_handler.php	(.../db_event_handler.php)	(revision 11742)
@@ -210,13 +210,13 @@
 
 			// 1. get id from post (used in admin)
 			$ret = $this->Application->GetVar($event->getPrefixSpecial(true).'_id');
-			if ($ret) {
+			if (($ret !== false) && ($ret != '')) {
 				return $ret;
 			}
 
 			// 2. get id from env (used in front)
 			$ret = $this->Application->GetVar($event->getPrefixSpecial().'_id');
-			if ($ret) {
+			if (($ret !== false) && ($ret != '')) {
 				return $ret;
 			}
 
@@ -232,6 +232,7 @@
 				$this->StoreSelectedIDs($event);
 				return $this->Application->GetVar($event->getPrefixSpecial(true).'_id'); // StoreSelectedIDs sets this variable
 			}
+
 			return $ret;
 		}
 
@@ -1180,7 +1181,14 @@
 			$object->Clear(0);
 			$this->Application->SetVar($event->Prefix_Special.'_SaveEvent', 'OnCreate');
 
-			$table_info = $object->getLinkedInfo();
+			if ($event->getEventParam('top_prefix') != $event->Prefix) {
+				// this is subitem prefix, so use main item special
+				$table_info = $object->getLinkedInfo( $this->getMainSpecial($event) );
+			}
+			else {
+				$table_info = $object->getLinkedInfo();
+			}
+
 			$object->SetDBField($table_info['ForeignKey'], $table_info['ParentId']);
 
 			$event->redirect = false;
@@ -1254,10 +1262,16 @@
 		 */
 		function setTempWindowID(&$event)
 		{
-			$mode = $this->Application->GetVar($event->Prefix.'_mode');
-			if ($mode == 't') {
-				$wid = $this->Application->GetVar('m_wid');
-				$this->Application->SetVar($event->Prefix.'_mode', 't'.$wid);
+			$prefixes = Array ($event->Prefix, $event->getPrefixSpecial(true));
+
+			foreach ($prefixes as $prefix) {
+				$mode = $this->Application->GetVar($prefix . '_mode');
+
+				if ($mode == 't') {
+					$wid = $this->Application->GetVar('m_wid');
+					$this->Application->SetVar(str_replace('_', '.', $prefix) . '_mode', 't' . $wid);
+					break;
+				}
 			}
 		}