added a fourth method (?help.php) to call webmail.

src/webmail.php

@@ -39,13 +39,15 @@
    echo "<FRAMESET COLS=\"$left_size, *\" NORESIZE BORDER=0>";
 
 /**
-    There are three ways to call webmail.php
+    There are four ways to call webmail.php
     1.  webmail.php
-         - this just loads the default entry screen.
+         - This just loads the default entry screen.
     2.  webmail.php?right_frame=right_main.php&sort=X&startMessage=X&mailbox=XXXX
          - This loads the frames starting at the given values.
     3.  webmail.php?right_frame=folders.php
          - Loads the frames with the Folder options in the right frame.
+    4.  webmail.php?right_frame=help.php
+	 - Lets the left frame set up different menu for help and calls the right frame.
 
     This was done to create a pure HTML way of refreshing the folder list since
     we would like to use as little Javascript as possible.
@@ -58,10 +60,14 @@
       $urlMailbox = urlencode($mailbox);
       echo "<FRAME SRC=\"left_main.php\" NAME=\"left\">";
       echo "<FRAME SRC=\"folders.php\" NAME=\"right\">";
+   } else if ($right_frame == "help.php") {
+      echo "<FRAME SRC=\"left_main.php?help.php\" NAME=\"left\">";
+      echo "<FRAME SRC=\"help.php\" NAME=\"right\">";
    } else {
       echo "<FRAME SRC=\"left_main.php\" NAME=\"left\">";
       echo "<FRAME SRC=\"right_main.php\" NAME=\"right\">";
    }
+
 ?>
 </FRAMESET>
 </HEAD></HTML>