Script to close/open all collapsed tabs in drupal

 
<script>
function collapseGroups(collapse){
 var selector = "fieldset.field-group-fieldset";
 if(collapse){
 jQuery(selector).addClass("collapsed");
 jQuery( "span.close-all" ).hide();
 jQuery( "span.open-all" ).show();
 
 }else{
 jQuery(selector).removeClass("collapsed");
 jQuery( "span.close-all" ).show();
 jQuery( "span.open-all" ).hide();
 }
}
</script>