+};
+
+ns.renumber = function(opt) {
+  $('#rs-dialog-confirm').remove();
+
+  var text1   = kivi.t8('Re-numbering all sections and function blocks in the order they are currently shown cannot be undone.');
+  var text2   = kivi.t8('Do you really want to continue?');
+  var $dialog = $('<div id="rs-dialog-confirm"><p>' + text1 + '</p><p>' + text2 + '</p></div>').hide().appendTo('body');
+  var buttons = {};
+
+  buttons[kivi.t8('Yes')] = function() {
+    $(this).dialog('close');
+    ns.renumber_callback(true);
+  };
+
+  buttons[kivi.t8('No')] = function() {
+    $(this).dialog('close');
+    ns.renumber_callback(false);
+  };
+
+  $dialog.dialog({
+      resizable: false
+    , modal:     true
+    , title:     kivi.t8('Are you sure?')
+    , height:    250
+    , width:     400
+    , buttons:   buttons
+  });
+};
+
+// -------------------------------------------------------------------------
+// ------------------------------- templates -------------------------------
+// -------------------------------------------------------------------------
+
+ns.paste_template = function(key, opt, other_data) {
+  kivi.popup_dialog({ url: 'controller.pl?action=RequirementSpec/select_template_to_paste', dialog: { title: kivi.t8("Select template to paste") } });
+};
+
+ns.paste_selected_template = function(template_id) {
+  $('#jqueryui_popup_dialog').dialog("close");
+
+  var data = {
+    action:               "RequirementSpec/paste_template",
+    id:                   $('#requirement_spec_id').val(),
+    template_id:          template_id,
+    current_content_type: $('#current_content_type').val(),
+    current_content_id:   $('#current_content_id').val()
+  };
+
+  // console.log("I would normally POST the following now:");
+  // console.log(data);
+  $.post("controller.pl", data, kivi.eval_json_result);
+
+  return true;
+};
+
+// -------------------------------------------------------------------------
+// ---------------------------- basic settings -----------------------------
+// -------------------------------------------------------------------------
+ns.standard_basic_settings_ajax_call = function(key, opt) {
+  if (key == 'cancel') {
+    if (confirm(kivi.t8('Do you really want to cancel?'))) {
+      $('#basic_settings').show();
+      $('#basic_settings_form,#project_link_form').remove();
+    }
+    return true;
+
+  } else if (key == 'save') {
+    $('#basic_settings_form_submit').click();
+    return true;
+  }
+
+  var data = 'action=RequirementSpec/ajax_' + key + '&id=' + encodeURIComponent($('#requirement_spec_id').val());
+
+  $.post("controller.pl", data, kivi.eval_json_result);
+
+  return true;
+};
+
+// -------------------------------------------------------------------------
+// -------------------------- time/cost estimate ---------------------------
+// -------------------------------------------------------------------------
+
+ns.standard_time_cost_estimate_ajax_call = function(key, opt) {
+  if (key == 'cancel') {
+    if (confirm(kivi.t8('Do you really want to cancel?'))) {
+      $('#time_cost_estimate').show();
+      $('#time_cost_estimate_form_container').remove();
+    }
+    return true;
+  }
+
+  var add_data = '';
+  if (key == 'save_keep_open') {
+    key      = 'save';
+    add_data = 'keep_open=1&';
+  }
+
+  var data = "action=RequirementSpec/ajax_" + key + "_time_and_cost_estimate&" + add_data;
+
+  if (key == 'save')
+    data += $('#edit_time_cost_estimate_form').serialize()
+         +  '&' + $('#current_content_type').serialize()
+         +  '&' + $('#current_content_id').serialize();
+  else
+    data += 'id=' + encodeURIComponent($('#requirement_spec_id').val());
+
+  $.post("controller.pl", data, kivi.eval_json_result);
+
+  return true;
+};
+
+ns.time_cost_estimate_input_key_down = function(event) {
+  if(event.keyCode == 13) {
+    event.preventDefault();
+    ns.standard_time_cost_estimate_ajax_call('save');
+    return false;
+  }
+};
+
+// -------------------------------------------------------------------------
+// --------------------------- quotations/orders ---------------------------
+// -------------------------------------------------------------------------
+
+ns.find_quotation_order_id = function(clicked_elt) {
+  return $(clicked_elt).find('>[name=order_id]').val();
+};
+
+ns.standard_quotation_order_ajax_call = function(key, opt) {
+  if (key == 'cancel') {
+    if (confirm(kivi.t8('Do you really want to cancel?'))) {
+      $('#quotations_and_orders').show();
+      $('#quotations_and_orders_article_assignment,#quotations_and_orders_new,#quotations_and_orders_update').remove();
+    }
+    return true;
+  }
+
+  else if ((key == 'create') && $('#quotations_and_orders_form INPUT[name="sections[].order_part_id"]').filter(function(idx, elt) { return ($(elt).val() || '') == '' }).size()) {
+    alert(kivi.t8('There is one or more sections for which no part has been assigned yet; therefore creating the new record is not possible yet.'));
+    return false;
+  }
+
+  var data = 'action=RequirementSpecOrder/' + key
+           + '&' + $('#requirement_spec_id').serialize();
+
+  if ((key == 'save_assignment') || (key == 'create') || (key == 'do_update'))
+    data += '&' + $('#quotations_and_orders_form').serialize();
+  else if ((key == 'update') || (key == 'delete'))
+    data += '&rs_order_id=' + encodeURIComponent(ns.find_quotation_order_id(opt.$trigger));
+
+  // console.log("I would normally POST the following now:");
+  // console.log(data);
+  $.post("controller.pl", data, kivi.eval_json_result);
+
+  return true;
+};
+
+ns.ask_delete_quotation_order = function(key, opt) {
+  if (confirm(kivi.t8("Are you sure?")))
+    ns.standard_quotation_order_ajax_call(key, opt);
+  return true;
+};
+
+ns.disable_edit_quotation_order_commands = function(key, opt) {
+  return ns.find_quotation_order_id(opt.$trigger) == undefined;
+};
+
+ns.disable_create_quotation_order_commands = function(key, opt) {
+  return !$('#quotations_and_orders_sections');
+};
+
+ns.assign_order_part_id_to_all = function() {
+  var order_part_id   = $('#quotations_and_orders_order_id').val();
+  var order_part_name = $('#quotations_and_orders_order_id_name').val();
+
+  $('#quotations_and_orders_form INPUT[name="sections[].order_part_id"]').each(function(idx, elt) {
+    $(elt).val(order_part_id);
+  });
+
+  $('#quotations_and_orders_form [id^=quotations_and_orders_sections_order_pard_id_]').filter(function() {
+    return $(this).attr('id') && $(this).attr('id').match("^quotations_and_orders_sections_order_pard_id_[0-9]+_name$");
+  }).each(function(idx, elt) {
+    $(elt).val(order_part_name);
+  });
+
+  var unit = $('#quotations_and_orders_order_id').closest('td').data('unit');
+  var text = ns.time_based_units[unit] ? kivi.t8("time and effort based position") : kivi.t8("flat-rate position");
+
+  $('#quotations_and_orders_form [data-unit-column=1]').html(unit);
+  $('#quotations_and_orders_form [data-position-type-column=1]').html(text);
+};
+
+ns.assign_order_part_on_part_picked = function(event, item) {
+  if (!item || !item.unit)
+    return;
+
+  var $elt = $(this),
+      id   = $elt.prop('id');
+
+  if (id == 'quotations_and_orders_order_id')
+    $elt.closest('td').data('unit', item.unit);
+
+  else {
+    var $tr  = $elt.closest('tr');
+    var text = ns.time_based_units[item.unit] ? kivi.t8("time and effort based position") : kivi.t8("flat-rate position");
+
+    $tr.find('[data-unit-column=1]').html(item.unit);
+    $tr.find('[data-position-type-column=1]').html(text);
+  }
+};
+
+// -------------------------------------------------------------------------
+// ---------------------------- general actions ----------------------------
+// -------------------------------------------------------------------------
+
+ns.create_reqspec_pdf = function(key, opt) {
+  var data = {
+    action: "RequirementSpec/create_pdf",
+    id:     $('#requirement_spec_id').val()
+  };
+  $.download("controller.pl", data);
+};
+
+ns.create_reqspec_html = function(key, opt) {
+  window.open("controller.pl?action=RequirementSpec/create_html&id=" + encodeURIComponent($('#requirement_spec_id').val()), '_blank');
+  return true;
+};
+
+ns.copy_reqspec = function(key, opt) {
+  window.location.href = "controller.pl?action=RequirementSpec/new©_source_id=" + encodeURIComponent($('#requirement_spec_id').val());
+  return true;
+};
+
+ns.delete_reqspec = function(key, opt) {
+  if (confirm(kivi.t8("Are you sure?")))
+    window.location.href = "controller.pl?action=RequirementSpec/destroy&id=" + encodeURIComponent($('#requirement_spec_id').val());
+  return true;
+};
+
+ns.disable_commands = function(key, opt) {
+  if (key === "create_version")
+    return ($('#current_version_id').val() || '') == '' ? false : true;
+  return false;
+};
+
+// -------------------------------------------------------------------------
+// -------------------------------- versions -------------------------------
+// -------------------------------------------------------------------------
+
+ns.find_versioned_copy_id = function(clicked_elt) {
+  var id = $(clicked_elt).find("[name=versioned_copy_id]");
+  return id.size() ? id.val() : undefined;
+};
+
+ns.disable_versioned_copy_item_commands = function(key, opt) {
+  if (key === "revert_to_version")
+    return !ns.find_versioned_copy_id(opt.$trigger);
+  return false;
+};
+
+ns.create_version = function() {
+  kivi.popup_dialog({ url:    'controller.pl',
+                      data:   { action:              'RequirementSpecVersion/new',
+                                requirement_spec_id: $('#requirement_spec_id').val() },
+                      dialog: { title: kivi.t8('Create a new version') }});
+  return true;
+};
+
+ns.create_pdf_for_versioned_copy_ajax_call = function(key, opt) {
+  var data = {
+    action: "RequirementSpec/create_pdf",
+    id:     ns.find_versioned_copy_id(opt.$trigger) || $('#requirement_spec_id').val()
+  };
+  $.download("controller.pl", data);
+
+  return true;
+};
+
+ns.create_html_for_versioned_copy_ajax_call = function(key, opt) {
+  window.open("controller.pl?action=RequirementSpec/create_html&id=" + encodeURIComponent(ns.find_versioned_copy_id(opt.$trigger) || $('#requirement_spec_id').val()), '_blank');
+  return true;
+};
+
+ns.revert_to_versioned_copy_ajax_call = function(key, opt) {
+  if (!confirm(kivi.t8('Do you really want to revert to this version?')))
+    return true;
+
+  var data = {
+    action:            'RequirementSpec/revert_to',
+    versioned_copy_id: ns.find_versioned_copy_id(opt.$trigger),
+    id:                $('#requirement_spec_id').val()
+  };
+
+  $.post("controller.pl", data, kivi.eval_json_result);
+
+  return true;
+};
+
+// -------------------------------------------------------------------------
+// -------------------------- time/cost estimate ---------------------------
+// -------------------------------------------------------------------------
+
+ns.standard_time_cost_estimate_ajax_call = function(key, opt) {
+  if (key == 'cancel') {
+    if (confirm(kivi.t8('Do you really want to cancel?'))) {
+      $('#time_cost_estimate').show();
+      $('#time_cost_estimate_form_container').remove();
+    }
+    return true;
+  }
+
+  var add_data = '';
+  if (key == 'save_keep_open') {
+    key      = 'save';
+    add_data = 'keep_open=1&';
+  }
+
+  var data = "action=RequirementSpec/ajax_" + key + "_time_and_cost_estimate&" + add_data;
+
+  if (key == 'save')
+    data += $('#edit_time_cost_estimate_form').serialize()
+         +  '&' + $('#current_content_type').serialize()
+         +  '&' + $('#current_content_id').serialize();
+  else
+    data += 'id=' + encodeURIComponent($('#requirement_spec_id').val());
+
+  $.post("controller.pl", data, kivi.eval_json_result);
+
+  return true;
+};
+
+ns.time_cost_estimate_input_key_down = function(event) {
+  if(event.keyCode == 13) {
+    event.preventDefault();
+    ns.standard_time_cost_estimate_ajax_call('save');
+    return false;
+  }
+};
+
+// -------------------------------------------------------------------------
+// -------------------------- additional parts -----------------------------
+// -------------------------------------------------------------------------
+
+ns.standard_additional_parts_ajax_call = function(key, opt) {
+  var add_data = '';
+  if (key == 'save_keep_open') {
+    key      = 'save';
+    add_data = 'keep_open=1&';
+  }
+
+  var data = "action=RequirementSpecPart/ajax_" + key + "&" + add_data + 'requirement_spec_id=' + encodeURIComponent($('#requirement_spec_id').val()) + '&';
+
+  if (key == 'save')
+    data += $('#edit_additional_parts_form').serialize();
+
+  $.post("controller.pl", data, kivi.eval_json_result);
+
+  return true;
+};
+
+ns.prepare_edit_additional_parts_form = function() {
+  $("#edit_additional_parts_list tbody").sortable({
+    distance: 5,
+    handle:   '.dragdrop',
+    helper:   function(event, ui) {
+      ui.children().each(function() {
+        $(this).width($(this).width());
+      });
+      return ui;
+    }
+
+  });
+};
+
+ns.cancel_edit_additional_parts_form = function() {
+  if (confirm(kivi.t8('Do you really want to cancel?'))) {
+    $('#additional_parts_list_container').show();
+    $('#additional_parts_form_container').remove();
+  }
+  return true;
+};
+
+ns.additional_parts_input_key_down = function(event) {
+  if(event.keyCode == 13) {
+    event.preventDefault();
+    ns.standard_additional_parts_ajax_call('save');
+    return false;
+  }
+};
+
+ns.add_additional_part = function() {
+  var part_id = $('#additional_parts_add_part_id').val();
+  if (!part_id || (part_id == ''))
+    return false;
+
+  var rspec_id = $('#requirement_spec_id').val();
+  var data     = 'action=RequirementSpecPart/ajax_add&requirement_spec_id=' + encodeURIComponent(rspec_id) + '&part_id=' + encodeURIComponent(part_id);
+
+  $.post("controller.pl", data, kivi.eval_json_result);
+
+  return true;
+};
+
+ns.delete_additional_part = function(key, opt) {
+  opt.$trigger.remove();
+  if (!$('#edit_additional_parts_list tbody tr').size()) {
+   $('#edit_additional_parts_list_empty').show();
+   $('#edit_additional_parts_list').hide();
+  }
+
+  return true;
+};
+
+// -------------------------------------------------------------------------
+// ------------------------------- tab widget ------------------------------
+// -------------------------------------------------------------------------
+var content_div_ids_for_tab_headers = {
+    'tab-header-function-block':     'function-blocks-tab'
+  , 'tab-header-basic-settings':     'ui-tabs-1'
+  , 'tab-header-time-cost-estimate': 'ui-tabs-2'
+  , 'tab-header-additional-parts':   'ui-tabs-3'
+  , 'tab-header-versions':           'ui-tabs-4'
+  , 'tab-header-quotations-orders':  'ui-tabs-5'
+};
+
+ns.tabs_before_activate = function(event, ui) {
+  if (!ui.oldTab)
+    return true;
+
+  var content_div_id = content_div_ids_for_tab_headers[ $(ui.oldTab).attr('id') ];
+  if (!content_div_id || (content_div_id == 'function-blocks-tab'))
+    return true;
+
+  var inputs = $('#' + content_div_id).find('input,select,textarea').filter('[type!=hidden]');
+  if (!inputs.size() || confirm(kivi.t8("If you switch to a different tab without saving you will lose the data you've entered in the current tab.")))
+    return true;
+
+  var new_focus = $(inputs).filter(':focusable')[0];
+  if (new_focus)
+    $(new_focus).focus();
+
+  return false;
+};
+
+// -------------------------------------------------------------------------
+// ----------------------------- context menus -----------------------------
+// -------------------------------------------------------------------------
+
+ns.create_context_menus = function(data) {
+  var general_actions;
+  if (data.is_template) {
+    general_actions = {
+        sep98:           "---------"
+      , general_actions: { name: kivi.t8('Requirement spec template actions'), className: 'context-menu-heading' }
+      // , sep99:           "---------"
+      , copy_reqspec:    { name: kivi.t8('Copy template'),   icon: "copy",   callback: kivi.requirement_spec.copy_reqspec   }
+      , delete_reqspec:  { name: kivi.t8('Delete template'), icon: "delete", callback: kivi.requirement_spec.delete_reqspec }
+      , sep_paste_template: "---------"
+      , renumber:        { name: kivi.t8('Renumber sections and function blocks'), icon: "renumber", callback: kivi.requirement_spec.renumber }
+    };
+
+    $.contextMenu({
+      selector: '.basic-settings-context-menu',
+      items:    $.extend({
+          heading: { name: kivi.t8('Basic settings actions'), className: 'context-menu-heading' }
+        , edit:    { name: kivi.t8('Edit'), icon: "edit", callback: kivi.requirement_spec.standard_basic_settings_ajax_call }
+      }, general_actions)
+    });
+
+  } else {                      // if (is_template)
+    general_actions = {
+        sep98:              "---------"
+      , general_actions:    { name: kivi.t8('Requirement spec actions'), className: 'context-menu-heading' }
+      , create_pdf:         { name: kivi.t8('Create PDF'),              icon: "pdf",    callback: kivi.requirement_spec.create_reqspec_pdf }
+      , create_html:        { name: kivi.t8('Create HTML'),             icon: "html",   callback: kivi.requirement_spec.create_reqspec_html }
+      , create_version:     { name: kivi.t8('Create new version'),      icon: "new",    callback: kivi.requirement_spec.create_version, disabled: kivi.requirement_spec.disable_commands }
+      , copy_reqspec:       { name: kivi.t8('Copy requirement spec'),   icon: "copy",   callback: kivi.requirement_spec.copy_reqspec   }
+      , delete_reqspec:     { name: kivi.t8('Delete requirement spec'), icon: "delete", callback: kivi.requirement_spec.delete_reqspec }
+      , sep_renumber:       "---------"
+      , renumber:           { name: kivi.t8('Renumber sections and function blocks'), icon: "renumber", callback: kivi.requirement_spec.renumber }
+      , sep_paste_template: "---------"
+      , paste_template:     { name: kivi.t8('Paste template'),     icon: "paste",  callback: kivi.requirement_spec.paste_template }
+    };
+
+    var versioned_copy_actions = {
+        heading:             { name: kivi.t8('Version actions'), className: 'context-menu-heading' }
+      , create_version_pdf:  { name: kivi.t8('Create PDF'),        icon: "pdf",    callback: kivi.requirement_spec.create_pdf_for_versioned_copy_ajax_call                                                                      }
+      , create_version_html: { name: kivi.t8('Create HTML'),       icon: "html",   callback: kivi.requirement_spec.create_html_for_versioned_copy_ajax_call                                                                     }
+      , revert_to_version:   { name: kivi.t8('Revert to version'), icon: "revert", callback: kivi.requirement_spec.revert_to_versioned_copy_ajax_call,     disabled: kivi.requirement_spec.disable_versioned_copy_item_commands }
+    };
+
+    if (!data.html_template_exists) {
+      delete general_actions.create_html;
+      delete versioned_copy_actions.create_version_html;
+    }
+
+    $.contextMenu({
+      selector: '.versioned-copy-context-menu',
+      items:    $.extend(versioned_copy_actions, general_actions)
+    });
+
+    $.contextMenu({
+      selector: ':has(> .basic-settings-context-menu:visible)',
+      items:    $.extend({
+          heading:           { name: kivi.t8('Basic settings actions'), className: 'context-menu-heading' }
+        , edit:              { name: kivi.t8('Edit'),              icon: "edit", callback: kivi.requirement_spec.standard_basic_settings_ajax_call }
+        , edit_project_link: { name: kivi.t8('Edit project link'),               callback: kivi.requirement_spec.standard_basic_settings_ajax_call }
+      }, general_actions)
+    });
+
+    $.contextMenu({
+      selector: ':has(> .edit-project-link-context-menu:visible)',
+      items:    $.extend({
+          heading: { name: kivi.t8('Project link actions'), className: 'context-menu-heading' }
+        , save:    { name: kivi.t8('Save'),   icon: "save",  callback: kivi.requirement_spec.standard_basic_settings_ajax_call }
+        , cancel:  { name: kivi.t8('Cancel'), icon: "close", callback: kivi.requirement_spec.standard_basic_settings_ajax_call }
+      }, general_actions)
+    });
+
+    var paste_template_actions = {
+    };
+  }                             // if (is_template) ... else ...