diff --git a/panel_manager/edit_sessions.php b/panel_manager/edit_sessions.php
index e7811d9..da6e69f 100644
--- a/panel_manager/edit_sessions.php
+++ b/panel_manager/edit_sessions.php
@@ -10,10 +10,11 @@
 	
 	require_once('../panel_admin/includes/film_dto.php');
 	include_once('../panel_admin/includes/film_dao.php');
-	$cinema = "1";
 	
 	$formHall = new FormHall();
-	$formHall->processesForm(null, $cinema, null, null, "list");
+	$formHall->processesForm(null, $_SESSION["cinema"], null, null, "list");
+	
+
 	
 	$filmList = new Film_DAO('complucine');
 	
@@ -24,14 +25,16 @@
 	}
 
 	if(isset($_REQUEST['option']) && $_REQUEST['option'] == 'edit') { 
+		$_SESSION["hall"] =	$_POST['hall'];
+		$_SESSION["date"] = $_POST['date'];
+		$_SESSION["start"] = $_POST['start'];
+	
 		echo "				<div class = \"column middle\">
 					<h2>Editar/Eliminar Sesion</h2>
 					<form method=\"post\" id=\"edit_ses\" action=\"validateSession.php\">
 						<div class=\"row\">
 							<fieldset id=\"datos\">
 								<legend>Datos</legend>
-								<input  name=\"cinema\" type=\"hidden\" value=\"". $_POST['idcinema']."\">
-								<input  name=\"id\" type=\"hidden\" value=\"". $_POST['id']."\">
 								<div class=\"_price\">
 									<input type=\"number\" name=\"price\" id=\"price\" value=\"". $_POST['price'] ."\"min=\"0\" placeholder=\"Precio de la entrada\" required/>
 								</div>
diff --git a/panel_manager/includes/formHall.php b/panel_manager/includes/formHall.php
index d8e580a..8bf817d 100644
--- a/panel_manager/includes/formHall.php
+++ b/panel_manager/includes/formHall.php
@@ -21,7 +21,6 @@ class FormHall extends Form {
     //Returns validation response:
     public function getReply() {
 		
-		echo "<p> se va a devolver una respuesta </p>";
 		if($this->correct){
 			if($this->option == "new"){
 				$this->reply = "<h1> Operacion realizada con exito </h1><hr />
@@ -36,7 +35,6 @@ class FormHall extends Form {
 						<p> Se ha eliminado la sala correctamente en la base de datos.</p>
 						<a href='../panel_manager/index.php'><button>Panel Gerente</button></a>";
 			}else if($this->option == "list"){
-								echo "<p> se va a devolver la lista </p>";
 								$this->reply = $this->halls;
 			}
 		} else {
diff --git a/panel_manager/includes/formSession.php b/panel_manager/includes/formSession.php
index aab2439..73dc013 100644
--- a/panel_manager/includes/formSession.php
+++ b/panel_manager/includes/formSession.php
@@ -42,7 +42,7 @@ class FormSession extends Form {
         return $this->reply;
     }
 
-    public function processesForm($id, $film, $hall, $cinema, $date, $start, $price, $format, $repeat, $option) {
+    public function processesForm($film, $hall, $cinema, $date, $start, $price, $format, $repeat, $option) {
 		$this->option = $option;
 		$this->correct = true;
 
@@ -58,21 +58,21 @@ class FormSession extends Form {
 					if($searchSession)	{
 						$this->correct = false;
 					} else{	
-						$bd->createSession(null, $film, $hall,$cinema, $date, $start, $price, $format);
+						$bd->createSession(null,$film, $hall,$cinema, $date, $start, $price, $format);
 					}
 				
 				} else if ($option == "del"){
-					$bd->deleteSession($id);
+					$bd->deleteSession($hall, $cinema, $date, $start);
 					
 				} else if ($option == "edit"){
-					$bd->editSession($id, $film, $hall, $cinema, $date, $start, $price, $format);
+					$bd->editSession($film, $hall, $cinema, $date, $start, $price, $format);
 		
 				}
 				
 				if($repeat > "0"){
 					$repeat--;
 					$date = date('Y-m-d', strtotime( $date. ' +1 day') );
-					$this->processesForm($id, $film, $hall, $cinema, $date, $start, $price, $format, $repeat, $option);
+					$this->processesForm($film, $hall, $cinema, $date, $start, $price, $format, $repeat, $option);
 				}		
 			}		
 		} else {$this->correct = false;}	
diff --git a/panel_manager/includes/session_dao.php b/panel_manager/includes/session_dao.php
index a304030..381e55a 100644
--- a/panel_manager/includes/session_dao.php
+++ b/panel_manager/includes/session_dao.php
@@ -1,7 +1,7 @@
 <?php
 	require_once('../assets/php/dao.php');
 	include_once('session_dto.php');
-
+	
     class SessionDAO extends DAO {
 		//Constructor:
         function __construct($bd_name){
@@ -68,7 +68,7 @@
 			return $sessions;
 		}
 		
-        public function editSession($id, $idfilm, $idhall, $idcinema, $date, $startTime, $seatPrice, $format){
+        public function editSession($idfilm, $idhall, $idcinema, $date, $startTime, $seatPrice, $format){
 			$format = $this->mysqli->real_escape_string($format);
 			$date = date('Y-m-d', strtotime( $date ) ); 
 			$startTime = date('H:i:s', strtotime( $startTime ) );
@@ -76,17 +76,20 @@
             $sql = sprintf( "UPDATE `session`
                              SET `idfilm` = '%d' , `idhall` = '%d', `idcinema` = '%d', `date` = '%s',
                                   `start_time` = '%s', `seat_price` = '%d', `format` = '%s'
-                             WHERE `session`.`id` = '%d';", 
-                $idfilm, $idhall, $idcinema, $date, $startTime, $seatPrice, $format, $id);
+                             WHERE 
+								idcinema = '%s' AND idhall = '%s' AND date = '%s' AND start_time = '%s'", 
+                $idfilm, $idhall, $idcinema, $date, $startTime, $seatPrice, $format, $_SESSION["cinema"],$_SESSION["hall"],$_SESSION["date"],$_SESSION["start"]);
 
             $resul = mysqli_query($this->mysqli, $sql) or die ('Error into query database');
 
             return $resul;
         }
 
-        public function deleteSession($id){
+        public function deleteSession($hall, $cinema, $date, $startTime){
 
-            $sql = sprintf( "DELETE FROM `session` WHERE `session`.`id` = '%d';",$id);
+            $sql = sprintf( "DELETE FROM `session` WHERE 
+							idcinema = '%s' AND idhall = '%s' AND date = '%s' AND start_time = '%s'", 
+							$cinema, $hall, $date, $startTime);	
 
             $resul = mysqli_query($this->mysqli, $sql) or die ('Error into query database');
 
diff --git a/panel_manager/manage_sessions.php b/panel_manager/manage_sessions.php
index 47ab637..dcc8551 100644
--- a/panel_manager/manage_sessions.php
+++ b/panel_manager/manage_sessions.php
@@ -16,15 +16,16 @@
 	
 	$placeholder_date = date("Y-m-d");
 	$placeholder_hall = "1";
-	$cinema = "1";
+	
+	$_SESSION["cinema"] = "1";
 
 	if(isset($_POST['filter']))	{
 		$placeholder_date = $_POST["date"];
 		$placeholder_hall = $_POST["hall"];
 	}
 	
-	$formHall->processesForm(null, $cinema, null, null, "list");
-	$formSession->processesForm(null, null, $placeholder_hall, $cinema, $placeholder_date, null, null, null, null, "list");
+	$formHall->processesForm(null, $_SESSION["cinema"], null, null, "list");
+	$formSession->processesForm(null, $placeholder_hall, $_SESSION["cinema"], $placeholder_date, null, null, null, null, "list");
 		
 	echo"				
 				<!--Session Filter -->
@@ -72,10 +73,8 @@
 								<td> " . $s->getFormat() . "</a></td>
 								<td> " . $s->getSeatPrice() . "</a></td>
 								<form method=\"post\" action=\"./?state=edit_session&option=edit\">
-									<input  name=\"id\" type=\"hidden\" value=\"".$s->getId()."\">
 									<input  name=\"idfilm\" type=\"hidden\" value=\"".$s->getIdfilm()."\">
 									<input  name=\"hall\" type=\"hidden\" value=\"".$s->getIdhall()."\">
-									<input  name=\"idcinema\" type=\"hidden\" value=\"".$s->getIdcinema()."\">
 									<input  name=\"date\" type=\"hidden\" value=\"".$s->getDate()."\">
 									<input  name=\"start\" type=\"hidden\" value=\"".$s->getStartTime()."\">
 									<input  name=\"price\" type=\"hidden\" value=\"".$s->getSeatPrice()."\">
diff --git a/panel_manager/validateSession.php b/panel_manager/validateSession.php
index 18921a6..d97aedd 100644
--- a/panel_manager/validateSession.php
+++ b/panel_manager/validateSession.php
@@ -6,16 +6,28 @@
 	$reply = "<p> ERROR DE ACCESO </p>" ;
 	
 	if(isset($_POST['new'])){
-		$session->processesForm(null, $_POST["film"], $_POST["hall"], $_POST["cinema"],$_POST["date"],$_POST["start"],$_POST["price"],$_POST["format"],$_POST["repeat"], "new");
+		$session->processesForm($_POST["film"], $_POST["hall"], $_SESSION["cinema"],$_POST["date"],$_POST["start"],$_POST["price"],$_POST["format"],$_POST["repeat"], "new");
 		$reply = $session->getReply();
+		$_SESSION["cinema"] = "";
+		$_SESSION["hall"] =	"";
+		$_SESSION["date"] = "";
+		$_SESSION["start"] = "";
 		
 	} else if (isset($_POST['edit'])){
-		$session->processesForm($_POST["id"], $_POST["film"], $_POST["hall"], $_POST["cinema"],$_POST["date"],$_POST["start"],$_POST["price"],$_POST["format"],"0", "edit");
+		$session->processesForm($_POST["film"], $_POST["hall"], $_SESSION["cinema"],$_POST["date"],$_POST["start"],$_POST["price"],$_POST["format"],"0", "edit");
 		$reply = $session->getReply();
+				$_SESSION["cinema"] = "";
+		$_SESSION["hall"] =	"";
+		$_SESSION["date"] = "";
+		$_SESSION["start"] = "";
 		 
 	} else if (isset($_POST['del'])){
-		$session->processesForm($_POST["id"], $_POST["film"], $_POST["hall"], $_POST["cinema"],$_POST["date"],$_POST["start"],$_POST["price"],$_POST["format"],"0", "del");
+		$session->processesForm($_POST["film"], $_POST["hall"], $_SESSION["cinema"],$_POST["date"],$_POST["start"],$_POST["price"],$_POST["format"],"0", "del");
 		$reply = $session->getReply();
+		$_SESSION["cinema"] = "";
+		$_SESSION["hall"] =	"";
+		$_SESSION["date"] = "";
+		$_SESSION["start"] = "";
 	}
 
 ?>