function doPreviewLayoutCode()
{
	var $form = jQuery('#fo_layout'), $act = $form.find('input[name=act]');
	var og_act = $act.val();

	$form.attr('target', '_LayoutPreview');
	$act.val('dispLayoutPreview');
	$form.submit();

	$form.removeAttr('target');
	$act.val(og_act);
}