diff --git a/index.php b/index.php
index 0faec6e..96c07da 100644
--- a/index.php
+++ b/index.php
@@ -1,5 +1,7 @@
-<?php
-session_start();
+<?php session_start();
+$timestamp=time();
+	setcookie("timestamp",$timestamp,($timestamp + 5000));
+	$_SESSION['timestamp']= $timestamp;
        if($_SESSION['grupo'] != "administrador") {
      //   	header("Location: ../");
         }
@@ -184,7 +186,7 @@ legend.legend-area {
 
 </style>
 </head>
-<body  >
+<body onload="revisarSession()";  >
 <?php if($embebido ==1) { 
 if($form!=''){	 echo formulario_embebido($form,$opciones);}
 elseif($identificador !='') { echo mostrar_identificador($identificador,$id);}
@@ -207,8 +209,12 @@ else{}
         <span class="icon-bar"></span>
         <span class="icon-bar"></span>
       </button>
+      
       <a class="navbar-brand" href="#"><img src="favicon-152.png" style="width:60px" alt="MILFS" title="Multi Interactive Light Form System"></a>
     </div>
+   
+                    
+      
 
 <?php  echo milfs() ?>
   </div><!-- /.container-fluid -->
@@ -220,6 +226,7 @@ else{}
 
 <div id='debug'></div>
 	<div class='container' id='contenedor_principal'>
+		
 		<div id='contenido'>
 			<div class='row'>
 				 <div id='' class='col-sm-6'>
@@ -305,5 +312,11 @@ $(document).ready(function() {
 });
 
     </script> 
+    <form name='form_session' class='navbar-form navbar-left'> 
+					<div class='input-group'>
+						<input type='text' name='tiempo_session' size='30' class='form-control input-sm' readonly> 
+						<span class='input-group-addon'><a href='#' onclick="location.reload();" title='Renovar'>Reload</a></span>
+					</div>
+				</form><?php echo $_SESSION['timestamp']; ?>
 </body>
 </html>
