archive/app/views/archives/custom_widget_data.html.erb

<% active_expanded = @custom_data_field[:expanded] rescue nil %>
<div class="control-group input-content hide archive_expanded">
  <label class="control-label muted" for="custom_expanded"><%=t("archive.expanded")%> :</label>
  <div class="controls">
	<%= select_tag("#{@field_name}[custom_data_field][expanded]", options_for_select(["yes","no"].map{|opt| [t("archive.#{opt}"),opt]},active_expanded),{:id=>"custom_expanded"})%>
  </div>
</div>
<script type="text/javascript">
	var has_expanded_layouts = ['archive_index2', 'archive_index4', 'archive_index12', 'archive_index14'];
	if($.inArray($("#page_layout").val(), has_expanded_layouts) != -1){
		$(".archive_expanded").addClass("show").removeClass("hide");
	}
	$("#page_layout").change(function(){
		var value = $(this).val();
		if($.inArray(value, has_expanded_layouts) != -1){
			$(".archive_expanded").addClass("show").removeClass("hide");
		}else{
			$(".archive_expanded").removeClass("show").addClass("hide");
		}
	})
</script>