diff --git a/themes/default-bootstrap/header.tpl b/themes/default-bootstrap/header.tpl
index 6fc22eade..534b39605 100644
--- a/themes/default-bootstrap/header.tpl
+++ b/themes/default-bootstrap/header.tpl
@@ -61,6 +61,7 @@
 			var priceDisplayPrecision = {$priceDisplayPrecision*$currency->decimals};
 			var priceDisplayMethod = {$priceDisplay};
 			var roundMode = {$roundMode};
+			var isUserLogged = {if $logged}true{else}false{/if};
 		</script>
        	<link href="{$css_dir}bootstrap_lib/bootstrap.css" rel="stylesheet" type="text/css" media="all" />
         <link href="{$css_dir}font-awesome.css" rel="stylesheet" type="text/css" media="all" />
diff --git a/themes/default/header.tpl b/themes/default/header.tpl
index db8b2c8eb..1a2712f58 100644
--- a/themes/default/header.tpl
+++ b/themes/default/header.tpl
@@ -50,6 +50,7 @@
 			var priceDisplayPrecision = {$priceDisplayPrecision*$currency->decimals};
 			var priceDisplayMethod = {$priceDisplay};
 			var roundMode = {$roundMode};
+			var isUserLogged = {if $logged}true{else}false{/if};
 		</script>
 {if isset($css_files)}
 	{foreach from=$css_files key=css_uri item=media}