<% layer_data.each do |entry| %>
<%= tag.tr :class => "mapkey-table-entry", :data => { :layer => layer_name, :zoom_min => entry["min_zoom"], :zoom_max => entry["max_zoom"] } do %>
<td>
<% layer_data.each do |entry| %>
<%= tag.tr :class => "mapkey-table-entry", :data => { :layer => layer_name, :zoom_min => entry["min_zoom"], :zoom_max => entry["max_zoom"] } do %>
<td>