diff --git a/pandora_console/ChangeLog b/pandora_console/ChangeLog
index d24f4d7951..49be946f91 100644
--- a/pandora_console/ChangeLog
+++ b/pandora_console/ChangeLog
@@ -1,3 +1,11 @@
+2014-05-21  Sergio Martin <sergio.martin@artica.es>
+
+	* general/main_menu.php
+	godmode/setup/setup_visuals.php
+	include/styles/pandora.css
+	include/functions_config.php: Added autohidden menu
+	feature
+
 2014-05-21  Vanessa Gil <vanessa.gil@artica.es>
 
 	* images/dot_blue.png
diff --git a/pandora_console/general/main_menu.php b/pandora_console/general/main_menu.php
index fbcac4ac3e..79170dcd31 100644
--- a/pandora_console/general/main_menu.php
+++ b/pandora_console/general/main_menu.php
@@ -20,8 +20,18 @@ if (! isset ($config["id_user"])) {
 	exit ();
 }
 
+$autohidden_menu = 0;
+
+if (isset ($config["autohidden_menu"]) && $config["autohidden_menu"]) {
+	$autohidden_menu = 1;
+}
+
+if ($autohidden_menu) {
+	$menu_container_id = 'menu_container';
+}
+
 // Menu container prepared to autohide menu
-echo '<div id="menu_container_old">';
+echo '<div id="' . $menu_container_id . '">';
 
 echo '<div class="tit bg titop">:: '.__('Operation').' ::</div>';
 require ("operation/menu.php");
@@ -49,6 +59,9 @@ ui_require_jquery_file ('cookie');
 ?>
 <script type="text/javascript" language="javascript">
 /* <![CDATA[ */
+
+var autohidden_menu = <?php echo $autohidden_menu; ?>;
+
 $(document).ready( function() {
 	$("img.toggle").click (function () {
 		$(this).siblings ("ul").toggle ();
@@ -63,13 +76,13 @@ $(document).ready( function() {
 	function handlerIn() {
 		handsIn = 1;
 		if(openTime == 0) {
-			$('#menu_container').animate({"left": "+=140px"}, 200);
+			show_menu();
 			openTime = new Date().getTime();
 			
 			// Close in 1 second if is not closed manually
 			setTimeout(function() {
 				if(openTime > 0 && handsIn == 0) {
-					$('#menu_container').animate({"left": "-=140px"}, 100);
+					hide_menu();
 					openTime = 0;
 				}
 			}, 1000);
@@ -81,10 +94,41 @@ $(document).ready( function() {
 		var openedTime = new Date().getTime() - openTime;
 		
 		if(openedTime > 1000) {
-			$('#menu_container').animate({"left": "-=140px"}, 100);
+			hide_menu();
 			openTime = 0;
 		}
 	}
+	
+	function show_menu () {
+		$('#menu_container').animate({"left": "+=140px"}, 200);
+		show_menu_pretty();
+	}
+	
+	function show_menu_pretty() {
+		$('div.menu ul li').css('background-position', '');
+		$('ul.submenu li a, li.menu_icon a, li.links a').css('visibility', '');
+		$('.titop').css('color', 'white');
+		$('.bg3').css('color', 'white');
+		$('.bg4').css('color', 'white');
+	}
+	
+	function hide_menu () {
+		$('#menu_container').animate({"left": "-=140px"}, 100);
+		hide_menu_pretty();
+	}
+	
+	function hide_menu_pretty() {
+		$('div.menu li').css('background-position', '140px 3px');
+		$('ul.submenu li a, li.menu_icon a, li.links a').css('visibility', 'hidden');
+		$('.titop').css('color', $('.titop').css('background-color'));
+		$('.bg3').css('color', $('.bg3').css('background-color'));
+		$('.bg4').css('color', $('.bg4').css('background-color'));
+	}
+	
+	if (autohidden_menu) {
+		$('#main').css('margin-left', '40px');
+		hide_menu_pretty();
+	}
 });
 /* ]]> */
 </script>
diff --git a/pandora_console/godmode/setup/setup_visuals.php b/pandora_console/godmode/setup/setup_visuals.php
index 1ba258c119..61c283db4c 100644
--- a/pandora_console/godmode/setup/setup_visuals.php
+++ b/pandora_console/godmode/setup/setup_visuals.php
@@ -302,6 +302,11 @@ $table->data[$row][1] = html_print_select($arraySelectIcon, "gis_default_icon",
 
 $row++;
 
+// For 5.1 Autohidden menu feature
+
+$table->data['autohidden'][0] = __('Autohidden menu');
+$table->data['autohidden'][1] = html_print_checkbox('autohidden_menu', 1, $config['autohidden_menu'], true);
+
 // Juanma (07/05/2014) New feature: Table for custom front page for reports  
 
 $table->data[$row][0] = __('Custom report front page') . ui_print_help_tip(__('Custom report front page. It will be applied to all reports and templates by default.'), true);
@@ -480,7 +485,6 @@ $(document).ready (function () {
 	
 	// Juanma (06/05/2014) New feature: Custom front page for reports  
 	var custom_report = $('#checkbox-custom_report_front').prop('checked');
-	console.log(custom_report);
 	display_custom_report_front(custom_report);
 
 	$("#checkbox-custom_report_front").click( function()  {
diff --git a/pandora_console/include/functions_config.php b/pandora_console/include/functions_config.php
index 897df83b27..4d03ed6071 100644
--- a/pandora_console/include/functions_config.php
+++ b/pandora_console/include/functions_config.php
@@ -424,7 +424,9 @@ function config_update_config () {
 						$error_update[] = __('GIS Labels');
 					if (!config_update_value ('gis_default_icon', get_parameter ('gis_default_icon')))
 						$error_update[] = __('Default icon in GIS');
-					
+					if (!config_update_value ('autohidden_menu', get_parameter('autohidden_menu')))
+						$error_update[] = __('Autohidden menu');
+						
 					$interval_values = get_parameter ('interval_values');
 					
 					// Add new interval value if is provided
@@ -1149,6 +1151,10 @@ function config_process_config () {
 		config_update_value ('custom_report_front_footer', '');
 	}
 		
+	if (!isset($config['autohidden_menu'])) {
+		config_update_value ('autohidden_menu', 0);
+	}
+		
 	/* Finally, check if any value was overwritten in a form */
 	config_update_config();
 }
diff --git a/pandora_console/include/styles/pandora.css b/pandora_console/include/styles/pandora.css
index ba46a2e2b6..e602f7f803 100644
--- a/pandora_console/include/styles/pandora.css
+++ b/pandora_console/include/styles/pandora.css
@@ -265,6 +265,12 @@ div#main_help div.databox p{
 	text-align: justify;
 }
 
+div#menu_container {
+	-moz-border-top-right-radius: 6px;
+	-webkit-border-top-right-radius: 6px;
+	border-top-right-radius: 6px;
+}
+
 div#menu {
 	width: 165px;
 	float: left;
@@ -2095,10 +2101,7 @@ div#main {
 	padding-left: 0px;
 	padding-top: 0px;
 	padding-bottom: 20px;
-	/*CLASSIC STYLE*/
 	margin-left: 182px;
-	/*AUTOHIDDEN MENU*/
-	/*margin-left: 40px;*/
 	margin-right: 20px;
 	background: #ECECEC;
 	min-width: 720px;
@@ -2892,6 +2895,7 @@ td.empty_field {
 	margin: 0px !important;
 	bottom: 0px;
 	left: 0px;
+	z-index: 1000;
 }
 
 #shortcut_bar {