diff --git a/horizontal-tabs/horizontal-tabs.js b/horizontal-tabs/horizontal-tabs.js
index 977e1b6..da5a5e4 100644
--- a/horizontal-tabs/horizontal-tabs.js
+++ b/horizontal-tabs/horizontal-tabs.js
@@ -119,6 +119,11 @@ Drupal.horizontalTab.prototype = {
       .siblings(':hidden.horizontal-tabs-active-tab')
         .val(this.fieldset.attr('id'));
     this.item.addClass('selected');
+    //append the tab anchor to the action of the form to preserve state
+    formaction = $('form').attr('action');
+    var hashind = formaction.indexOf("#");
+    var newaction = formaction.substring(0,hashind)+"#"+$(this.fieldset).attr('id');
+    $('form').attr('action',newaction);
     // Mark the active tab for screen readers.
     $('#active-horizontal-tab').remove();
     this.link.append('<span id="active-horizontal-tab" class="element-invisible">' + Drupal.t('(active tab)') + '</span>');