add listing of user/folder sizes

index.php

@@ -40,6 +40,25 @@
 </form>
 <hr />
 
+<h3>Show total sizes of all Email accounts</h3>
+<form action="submit.php" method="post">
+  <button type="submit" name="action" value="sizeall">Show size</button>
+  <!-- Hidden confirmation box -->
+  <input type="hidden" name="sure" value="yes" />
+</form>
+<hr />
+
+<h3>Show size of every folder of a single Email account</h3>
+<form action="submit.php" method="post">
+  <label>Username:</label>
+  <input name="user" title="User" />
+  <br />
+  <button type="submit" name="action" value="sizeuser">Show size</button>
+  <!-- Hidden confirmation box -->
+  <input type="hidden" name="sure" value="yes" />
+</form>
+<hr />
+
 <h3>Detailed info about a single Email account</h3>
 <form action="submit.php" method="post">
   <label>Username:</label>