diff --git a/htdocs/core/lib/agenda.lib.php b/htdocs/core/lib/agenda.lib.php
index c9773372e93..5bd0bc5ee95 100644
--- a/htdocs/core/lib/agenda.lib.php
+++ b/htdocs/core/lib/agenda.lib.php
@@ -140,26 +140,28 @@ function print_actions_filter($form, $canedit, $status, $year, $month, $day, $sh
 		{
 			if (count($showextcals) > 0)
 			{
-				print '<tr><td><input type="checkbox" id="check_mytasks" name="check_mytasks" checked="true" disabled="disabled"> ' . $langs->trans("LocalAgenda") . '</td></tr>';
+				print '<tr><td>';
+				//jQuery Learning "How do I select an element by an ID that has characters used in CSS notation?"
+				//http://learn.jquery.com/using-jquery-core/faq/how-do-i-select-an-element-by-an-id-that-has-characters-used-in-css-notation/
+				print '<script type="text/javascript">
+					function jq( myid ) {
+						return myid.replace( /(:|\.|\[|\]|,|@)/g, "\\\\$1" );
+					}
+					jQuery(document).ready(function () {
+
+						jQuery("form.listactionsfilter input[name^=\"check_\"]").click(function() {
+							var name = $(this).attr("name");
+
+							jQuery(".family_" + jq(name.replace("check_", ""))).toggle();
+						});
+				    });
+				</script>';
+				print '<input type="checkbox" id="check_mytasks" name="check_mytasks" checked="true" disabled="disabled"> ' . $langs->trans("LocalAgenda") . '</td></tr>';
 				foreach ($showextcals as $val)
 				{
 					$htmlname = dol_string_nospecial($val['name']);
 
 					print '<tr><td>';
-					print '<script type="text/javascript">' . "\n";
-
-					//jQuery Learning "How do I select an element by an ID that has characters used in CSS notation?"
-					//http://learn.jquery.com/using-jquery-core/faq/how-do-i-select-an-element-by-an-id-that-has-characters-used-in-css-notation/
-					print '	function jq( myid ) {
-					    return myid.replace( /(:|\.|\[|\]|,|@)/g, "\\\\$1" );
-					}';
-
-					print 'jQuery(document).ready(function () {' . "\n";
-					print '		jQuery("#check_" + jq("'.$htmlname.'")).click(function() {';
-					print ' 		jQuery(".family_" + jq("'.$htmlname.'")).toggle();';
-					print '		});' . "\n";
-					print '});' . "\n";
-					print '</script>' . "\n";
 					print '<input type="checkbox" id="check_' . $htmlname . '" name="check_' . $htmlname . '" checked="true"> ' . $val ['name'];
 					print '</td></tr>';
 				}