fix isset checks

panel/ui/header.html

@@ -24,7 +24,7 @@
     <a href="{{@BASE}}/Logout">Logout</a>
   </check>
 
-  <check if="{{ @NAV.subnav }}">
+  <check if="isset(@NAV.subnav)">
     <true>
       <p style="padding-top: 5px">
       >>
@@ -50,15 +50,15 @@
     </false>
   </check>
 </nav>
-<check if="{{ @page_header }}">
+<check if="isset(@page_header)">
   <h1>{{@page_header}}</h1>
 </check>
 </header>
 <main>
-<check if="{{ @ERROR.text }}">
+<check if="isset(@ERROR.text)">
   <h3>{{@ERROR.text}}</h3>
 </check>
-<check if="{{ @SESSION.messages }}">
+<check if="isset(@SESSION.messages)">
   <p>
     <section style="color:red">
       <repeat group="{{ @SESSION.messages }}" value="{{ @panel_message }}">

panel/ui/vmail/aliases-delete.html

@@ -1,6 +1,6 @@
 <include href="header.html" />
 
-<check if="{{ @confirm }}">
+<check if="isset(@confirm)">
   <true>
     <form action="{{@REALM}}" method="POST">
     <fieldset>

panel/ui/vmail/aliases.html

@@ -1,6 +1,6 @@
 <include href="header.html" />
 
-<check if="{{ @aliases_array }}">
+<check if="isset(@aliases_array)">
   <true>
 
     <table>
@@ -29,7 +29,7 @@
 <b>Email Account</b> is the existing email account that the alias address is delivered to.<br>
 </p>
 <p>
-<check if="{{ @PARAMS.mbox }}">
+<check if="isset(@PARAMS.mbox)">
   <true>
     <a href="{{@REALM}}/Add">Add new email alias form</a>
   </true>

panel/ui/vmail/autoresponders-autoresponder.html

@@ -1,7 +1,7 @@
 <include href="header.html" />
 
 
-<check if="{{ @autoresponders_array }}">
+<check if="isset(@autoresponders_array)">
 <table>
 <!--  <tr>
     <th colspan="2">Autoresponder for {{ @mbox  }}@{{ @domain  }} </th>

panel/ui/vmail/autoresponders-delete.html

@@ -1,6 +1,6 @@
 <include href="header.html" />
 
-<check if="{{ @confirm }}">
+<check if="isset(@confirm)">
   <true>
     <form action="{{@REALM}}" method="POST">
     <fieldset>

panel/ui/vmail/autoresponders.html

@@ -1,6 +1,6 @@
 <include href="header.html" />
 
-<check if="{{ @autoresponders_array }}">
+<check if="isset(@autoresponders_array)">
   <true>
     <table>
     <tr>

panel/ui/vmail/domains-delete.html

@@ -1,8 +1,6 @@
 <include href="header.html" />
 
-<check if="{{ @confirm }}">
-
-
+<check if="isset(@confirm)">
 
 <form action="{{@NAV.fullpath}}" method="POST">
 <fieldset>

panel/ui/vmail/domains.html

@@ -1,6 +1,6 @@
 <include href="header.html" />
 
-<check if="{{ @domains_array }}">
+<check if="isset(@domains_array)">
 <true>
   <table>
     <tr>

panel/ui/vmail/forwards-delete.html

@@ -1,6 +1,6 @@
 <include href="header.html" />
 
-<check if="{{ @confirm }}">
+<check if="isset(@confirm)">
   <true>
     <form action="{{@REALM}}" method="POST">
     <fieldset>

panel/ui/vmail/forwards-forward.html

@@ -1,7 +1,6 @@
 <include href="header.html" />
 
-
-<check if="{{ @forward_array }}">
+<check if="isset(@forward_array)">
 <table>
   <tr>
     <th>Email Account</th>

panel/ui/vmail/forwards.html

@@ -1,6 +1,6 @@
 <include href="header.html" />
 
-<check if="{{ @forwards_array }}">
+<check if="isset(@forwards_array)">
   <true>
     <table>
     <tr>

panel/ui/vmail/mboxes-delete.html

@@ -1,6 +1,6 @@
 <include href="header.html" />
 
-<check if="{{ @confirm }}">
+<check if="isset(@confirm)">
   <true>
     <form action="{{@REALM}}" method="POST">
     <fieldset>

panel/ui/vmail/mboxes.html

@@ -1,6 +1,6 @@
 <include href="header.html" />
 
-<check if="{{ @mboxes_array }}">
+<check if="isset(@mboxes_array)">
 <true>
   <table>
     <tr>