%form#alerts{:method => :post, :action => '/alerts/acknowledge'}
  %table
    %tr
      %th#selector
        %input#toggle_all{ :type => "checkbox" }
        :javascript
          // This just toggles all the checkboxes.
          $('#toggle_all').change( function() {
            $('input.alert').each( function(index) {
              this.checked = !this.checked;
            });
          });
      %th#time    At
      %th#summary Summary
    = partial("alerts_table_group", :collection => @grouped_alerts)
    %tr
      %td  
      %td{:colspan => 2}
        = partial("acknowledge_input")