diff --git a/htdocs/frontend/index.html b/htdocs/frontend/index.html
index f60a404..903011f 100644
--- a/htdocs/frontend/index.html
+++ b/htdocs/frontend/index.html
@@ -134,7 +134,7 @@
 		<div id="entity-subscribe">
 			<p>Hier k&ouml;nnen Sie einen existierenden Kanal über seine UUID hinzuf&uuml;gen</p>
 			<table>
-				<tr><td><label for="middleware">Middleware URL:</label></td><td><input id="middleware" type="text" /></td></tr>
+				<tr><td><label for="middleware">Middleware:</label></td><td><input id="middleware" type="text" size="36" /></td></tr>
 				<tr><td><label for="uuid">UUID:</label></td><td><input id="uuid" type="text" size="36" maxlength="36" /></td></tr>
 			</table>
 			<p><input type="button" value="Abonnieren" /> <label for="cookie">Cookie:</label> <input class="cookie" type="checkbox" /></p>
@@ -151,7 +151,7 @@
 			<form method="get" target="_blank">
 				<table>
 					<tr class="property"><th>Eigenschaft</th><th>Wert</th></tr>
-					<tr class="property"><td>Middleware URL:</td><td><input type="text" id="entity-create-middlware" value="../middleware.php" /></td></tr>
+					<tr class="property"><td>Middleware:</td><td><input type="text" id="entity-create-middlware" value="../middleware.php" /></td></tr>
 					<tr class="property"><td>Typ:</td><td><select name="type" size="1"></select></td></tr>
 					<tr class="property"><td>&Ouml;ffentlich:</td><td><input type="radio" name="public" value="1"> ja&nbsp;&nbsp;<input type="radio" name="public" value="0"> nein</td></tr>
 					<tr class="property"><td>Titel:</td><td><input type="text" name="title" value="K&uuml;hlschrank" /></td></tr>
diff --git a/htdocs/frontend/javascripts/wui.js b/htdocs/frontend/javascripts/wui.js
index b71bb46..578dd87 100644
--- a/htdocs/frontend/javascripts/wui.js
+++ b/htdocs/frontend/javascripts/wui.js
@@ -213,7 +213,7 @@ vz.wui.zoom = function(from, to) {
 
 	// we dont want to zoom/pan into the future
 	if (vz.options.plot.xaxis.max > new Date().getTime()) {
-		delta = vz.options.plot.xaxis.max - vz.options.plot.xaxis.min;
+		var delta = vz.options.plot.xaxis.max - vz.options.plot.xaxis.min;
 		vz.options.plot.xaxis.max = new Date().getTime();
 		vz.options.plot.xaxis.min = new Date().getTime() - delta;
 	}