diff --git a/app/common/directives/app-navigation.html b/app/common/directives/app-navigation.html
index 417fc7e..6a25ab6 100644
--- a/app/common/directives/app-navigation.html
+++ b/app/common/directives/app-navigation.html
@@ -3,7 +3,7 @@
 		<li>
 			<a class="btn-overview" ng-class="{opened: firstLevel == 'overview'}" href="#/overview/system" ng-click="change('overview')" tabindex="1">
 				<span class="">
-					<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 40 40" style="enable-background:new 0 0 40 40;" xml:space="preserve" class="nav-icon">
+					<svg version="1.1" xmlns="http://www.w3.org/2000/svg" x="0px" y="0px" viewBox="0 0 40 40" style="enable-background:new 0 0 40 40;" xml:space="preserve" class="nav-icon">
 						<path d="M23.9,18.2l3.3,3.3l1.1-1.1L23.9,16l-7.8,7.8l-3.3-3.3l-1.1,1.1l4.4,4.4L23.9,18.2z"/>
 						<path d="M5,8v24h30V8H5z M33,30H7V12h26V30z"/>
 					</svg>
@@ -12,7 +12,7 @@
 		<li>
 			<button class="btn-health" ng-class="{opened: firstLevel == 'server-health'}" ng-click="change('server-health')" tabindex="2">
 				<span>
-					<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 40 40" style="enable-background:new 0 0 40 40;" xml:space="preserve" class="nav-icon">
+					<svg version="1.1" xmlns="http://www.w3.org/2000/svg" x="0px" y="0px" viewBox="0 0 40 40" style="enable-background:new 0 0 40 40;" xml:space="preserve" class="nav-icon">
 						<polyline class="st0" points="32,12.9 32,16 8,16 8,8 27,8 "/>
 						<rect x="8" y="16" class="st0" width="24" height="8"/>
 						<rect x="8" y="24" class="st0" width="24" height="8"/>
@@ -31,7 +31,7 @@
 		<li>
 			<button class="btn-control" ng-class="{opened: firstLevel == 'server-control'}" ng-click="change('server-control')" tabindex="3">
 				<span>
-					<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 40 40" style="enable-background:new 0 0 40 40;" xml:space="preserve" class="nav-icon">
+					<svg version="1.1" xmlns="http://www.w3.org/2000/svg" x="0px" y="0px" viewBox="0 0 40 40" style="enable-background:new 0 0 40 40;" xml:space="preserve" class="nav-icon">
 						<line class="st0" x1="8" y1="12" x2="32" y2="12"/>
 						<line class="st0" x1="8" y1="20" x2="32" y2="20"/>
 						<line class="st0" x1="8" y1="28" x2="32" y2="28"/>
@@ -46,8 +46,7 @@
 		<li>
 			<button class="btn-config" ng-class="{opened: firstLevel == 'configuration'}" ng-click="change('configuration')" tabindex="4">
 			<span>
-				<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
-						 viewBox="0 0 40 40" style="enable-background:new 0 0 40 40;" xml:space="preserve" class="nav-icon">
+				<svg version="1.1" xmlns="http://www.w3.org/2000/svg" x="0px" y="0px" viewBox="0 0 40 40" style="enable-background:new 0 0 40 40;" xml:space="preserve" class="nav-icon">
 					<path d="M31.5,20c0-0.6-0.1-1.2-0.2-1.8L35,15l-3.1-5.1l-4.4,1.4c-1.1-0.9-2.3-1.6-3.6-2.1L23,5h-6l-1,4.2c-1.3,0.5-2.5,1.2-3.6,2.1
 						L8.1,9.9L5,15l3.7,3.2c-0.1,0.6-0.2,1.2-0.2,1.8c0,0.6,0.1,1.2,0.2,1.8L5,25l3.1,5.1l4.4-1.4c1.1,0.9,2.3,1.6,3.6,2.1l1,4.2h6l1-4.2
 						c1.3-0.5,2.5-1.2,3.6-2.1l4.4,1.4L35,25l-3.7-3.2C31.4,21.2,31.5,20.6,31.5,20z M32.4,25.4L31,27.7l-2.9-0.9l-1.1-0.4l-0.9,0.7