diff --git a/index.php b/index.php
index 7453210..fcffa38 100644
--- a/index.php
+++ b/index.php
@@ -1,5 +1,5 @@
 <?php session_start();
-//ini_set('display_errors', 'On');
+
 if(isset($_REQUEST['debug'])) {
 	print_r( $_SESSION );
 	ini_set('display_errors', 'On');}
@@ -13,7 +13,12 @@ if(isset($_REQUEST['debug'])) {
    require ("milfs/includes/markdown.php");
    require ("milfs/includes/parametrizacion.php");
    require ("milfs/includes/simple_html_dom.php");
-	$xajax->processRequests();  ?>
+	$xajax->processRequests(); 
+	
+	$timestamp=time();
+	setcookie("timestamp",$timestamp,($timestamp + 5000));
+	$_SESSION['timestamp']= $timestamp;
+	 ?>
 <!DOCTYPE html>
 <html lang="en">
    <head >
@@ -1133,7 +1138,16 @@ $panel_aplicaciones = panel_aplicaciones('1',"","");
 
 		 ;}
 
-
+ if(isset($_SESSION['id'])){ 
+	 $form_tiempo_session = "
+    <li>
+		<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>
+	</li> ";  } else{ $form_tiempo_session = "";}
  if($tema=="") {
 
  $barra="
@@ -1166,6 +1180,7 @@ $panel_aplicaciones = panel_aplicaciones('1',"","");
                             ".aplicaciones_listado("$id_empresa",'','nav','')."
                         </ul>
                     </li>
+                   $form_tiempo_session
                 </ul>
                 <ul id='menu_social' class='nav navbar-nav navbar-right'>
 
@@ -1258,6 +1273,7 @@ $menu_lateral = "
 				$soporte
 				<li><a href='https://twitter.com/$twitter[0]'><i class='icon-twitter'></i></a></li>
 				<li><a href='https://www.facebook.com/$facebook[0]'><i class='icon-facebook'></i></a></li>
+				
 
 			</ul>
 		</div>
@@ -1333,7 +1349,7 @@ document.oncopy = addLink;
 <?php } ?>
 </head>
 
-<body data-spy="scroll" data-target="#toc">
+<body data-spy="scroll" data-target="#toc" onload="revisarSession()"; >
 
 <?php
 
diff --git a/salir.php b/salir.php
new file mode 100644
index 0000000..0935b77
--- /dev/null
+++ b/salir.php
@@ -0,0 +1,6 @@
+<?php    if(!isset($_SESSION))    {        if(!isset($_SESSION))    {     session_start();     }      } 
+
+session_destroy();
+$pagina=$_SERVER['HTTP_REFERER'];
+ header("Location:./index.php");
+?>
