--- web/googlemap.cgi	2007/12/03 15:06:33	18
+++ web/googlemap.cgi	2007/12/03 19:16:55	19
@@ -30,7 +30,7 @@
 my $html = join('', qq{
 <h1>Select GPS NMEA dump</h1>
 	},
-	$q->start_form,
+	$q->start_form( -id => 'trace_frm' ),
 	$q->popup_menu(
 		-name => 'trace', 
 		-values => [
@@ -41,6 +41,7 @@
 				(stat("$trace_path/$a"))[10] <=> (stat("$trace_path/$b"))[10]
 			} @traces
 		],
+		-onChange => 'trace_frm.submit()',
 	),
 	$q->submit( -value => 'Show trace' ),
 	$q->end_form,