Save Bcc recipients in draft message.

program/steps/mail/compose.inc

@@ -150,7 +150,10 @@ function rcmail_compose_headers($attrib)
         }
     case 'bcc':
       if (!$fname)
+        {
         $fname = '_bcc';
+        $header = 'bcc';
+        }
         
       $allow_attrib = array('id', 'class', 'style', 'cols', 'rows', 'wrap', 'tabindex');
       $field_type = 'textarea';            

skins/default/templates/compose.html

@@ -135,6 +135,9 @@ function rcmail_toggle_display(id)
 var cc_field = document.form._cc;
 if (cc_field && cc_field.value!='')
   rcmail_toggle_display('compose-cc');
+var bcc_field = document.form._bcc;
+if (bcc_field && bcc_field.value!='')
+  rcmail_toggle_display('compose-bcc');
 
 //-->
 </script>