Index: program/steps/mail/func.inc
===================================================================
--- program/steps/mail/func.inc	(revision 0c259682f65eaaf23ea4ccb56a706d6baf3007e4)
+++ program/steps/mail/func.inc	(revision 76248c7b6e5060107536de2c4e287667b02b3b0e)
@@ -987,6 +987,6 @@
   global $OUTPUT;
 
-  $html = html::div(array('class' => "more-headers show-headers", 'onclick' => "return ".JS_OBJECT_NAME.".command('load-headers','',this)"), '');
-  $html .= html::div(array('id' => "all-headers", 'class' => "all", 'style' => 'display:none'), html::div(array('id' => 'headers-source'), ''));
+  $html = html::div(array('id' => "all-headers", 'class' => "all", 'style' => 'display:none'), html::div(array('id' => 'headers-source'), ''));
+  $html .= html::div(array('class' => "more-headers show-headers", 'onclick' => "return ".JS_OBJECT_NAME.".command('show-headers','',this)"), '');
 
   $OUTPUT->add_gui_object('all_headers_row', 'all-headers');