+};
+
+ns.ask_delete_item = function(key, opt) {
+  if (confirm(kivi.t8("Are you sure?")))
+    ns.standard_item_ajax_call(key, opt);
+  return true;
+};
+
+ns.handle_text_block_popup_menu_markings = function(opt, add) {
+  var id = ns.find_text_block_id(opt.$trigger);
+  if (id)
+    $('#text-block-' + id).toggleClass('selected', add);
+  return true;
+};
+
+ns.text_block_popup_menu_shown = function(opt) {
+  return ns.handle_text_block_popup_menu_markings(opt, true);
+};
+
+ns.text_block_popup_menu_hidden = function(opt) {
+  return ns.handle_text_block_popup_menu_markings(opt, false);
+};
+
+ns.handle_item_popup_menu_markings = function(opt, add) {
+  var id = ns.find_item_id(opt.$trigger);
+  if (id)
+    $('#section-' + id + ',#function-block-' + id + ',#sub-function-block-' + id).toggleClass('selected', add);
+  return true;
+};
+
+ns.item_popup_menu_shown = function(opt) {
+  return ns.handle_item_popup_menu_markings(opt, true);
+};
+
+ns.item_popup_menu_hidden = function(opt) {
+  return ns.handle_item_popup_menu_markings(opt, false);
+};
+
+// -------------------------------------------------------------------------
+// ------------------------------- templates -------------------------------
+// -------------------------------------------------------------------------
+
+ns.paste_template = function(key, opt, other_data) {
+  open_jqm_window({ url: 'controller.pl?action=RequirementSpec/select_template_to_paste' });
+};
+
+ns.paste_selected_template = function(template_id) {
+  $('#jqm_popup_dialog').jqmClose();
+
+  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;
+};
+
+// -------------------------------------------------------------------------
+// -------------------------- time/cost estimate ---------------------------
+// -------------------------------------------------------------------------
+
+ns.standard_time_cost_estimate_ajax_call = function(key, opt) {
+  if ((key == 'cancel') && !confirm(kivi.t8('Do you really want to cancel?')))
+    return true;
+
+  var data = "action=RequirementSpec/ajax_" + key + "_time_and_cost_estimate&";
+
+  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;
+};
+
+// -------------------------------------------------------------------------
+// ---------------------------- general actions ----------------------------
+// -------------------------------------------------------------------------
+
+ns.create_reqspec_pdf = function(key, opt) {
+  var data = {
+    action: "RequirementSpec/create_pdf",
+    id:     $('#requirement_spec_id').val()
+  };
+  $.download("controller.pl", data);
+};
+
+ns.copy_reqspec = function(key, opt) {
+  window.location.href = "controller.pl?action=RequirementSpec/new©_source_id=" + encodeURIComponent($('#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 = $(clicked_elt).find("[name=versioned_copy_id]");
+  return id ? id.val() : undefined;
+};
+
+ns.disable_versioned_copy_item_commands = function(key, opt) {
+  if (key === "revert_to_version")
+    return !ns.find_versioned_copy_id(opt.$trigger);
+  return false;
+};
+
+ns.create_version = function() {
+  open_jqm_window({ url:  'controller.pl',
+                    data: { action:              'RequirementSpecVersion/new',
+                            requirement_spec_id: $('#requirement_spec_id').val() },
+                    id:   'new_requirement_spec_version_window' });
+  return true;
+};
+
+ns.create_pdf_for_versioned_copy_ajax_call = function(key, opt) {
+  var data = {
+    action: "RequirementSpec/create_pdf",
+    id:     ns.find_versioned_copy_id(opt.$trigger)
+  };
+  $.download("controller.pl", data);
+
+  return true;
+};
+
+ns.revert_to_versioned_copy_ajax_call = function(key, opt) {
+  if (!confirm(kivi.t8('Do you really want to revert to this version?')))
+    return true;
+
+  var data = {
+    action:            'RequirementSpec/revert_to',
+    versioned_copy_id: ns.find_versioned_copy_id(opt.$trigger),
+    id:                $('#requirement_spec_id').val()
+  };
+
+  $.post("controller.pl", data, kivi.eval_json_result);
+
+  return true;
+};
+
+// -------------------------------------------------------------------------
+// ----------------------------- context menus -----------------------------
+// -------------------------------------------------------------------------
+
+ns.create_context_menus = function(is_template) {
+  if (is_template) {
+    var 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 }
+    };
+
+  } else {                      // if (is_template)
+    var 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_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_paste_template: "---------"
+      , paste_template:     { name: kivi.t8('Paste template'),     icon: "paste",  callback: kivi.requirement_spec.paste_template }
+    };
+
+    $.contextMenu({
+      selector: '.versioned-copy-context-menu',
+      items:    $.extend({
+          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                                                                      }
+        , 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 }
+      }, general_actions)
+    });
+
+    var paste_template_actions = {
+    };
+  }                             // if (is_template) ... else ...
+
+  var events = {
+      show: kivi.requirement_spec.text_block_popup_menu_shown
+    , hide: kivi.requirement_spec.text_block_popup_menu_hidden
+  };
+
+  $.contextMenu({
+    selector: '.text-block-context-menu',
+    events:   {
+        show: kivi.requirement_spec.text_block_popup_menu_shown
+      , hide: kivi.requirement_spec.text_block_popup_menu_hidden
+    },
+    items:    $.extend({
+        heading: { name: kivi.t8('Text block actions'),    className: 'context-menu-heading' }
+      , add:     { name: kivi.t8('Add text block'),        icon: "add",    callback: kivi.requirement_spec.standard_text_block_ajax_call }
+      , edit:    { name: kivi.t8('Edit text block'),       icon: "edit",   callback: kivi.requirement_spec.standard_text_block_ajax_call, disabled: kivi.requirement_spec.disable_edit_text_block_commands }
+      , delete:  { name: kivi.t8('Delete text block'),     icon: "delete", callback: kivi.requirement_spec.ask_delete_text_block,         disabled: kivi.requirement_spec.disable_edit_text_block_commands }
+      , sep1:    "---------"
+      , flag:    { name: kivi.t8('Toggle marker'),         icon: "flag",   callback: kivi.requirement_spec.standard_text_block_ajax_call, disabled: kivi.requirement_spec.disable_edit_text_block_commands }
+      , sep2:    "---------"
+      , copy:    { name: kivi.t8('Copy'),                  icon: "copy",   callback: kivi.requirement_spec.standard_text_block_ajax_call, disabled: kivi.requirement_spec.disable_edit_text_block_commands }
+      , paste:   { name: kivi.t8('Paste'),                 icon: "paste",  callback: kivi.requirement_spec.standard_text_block_ajax_call  }
+    }, general_actions)
+  });
+
+  $.contextMenu({
+    selector: '.time-cost-estimate-context-menu',
+    items:    $.extend({
+        heading: { name: kivi.t8('Time/cost estimate actions'), className: 'context-menu-heading' }
+      , edit:    { name: kivi.t8('Edit'), icon: "edit", callback: kivi.requirement_spec.standard_time_cost_estimate_ajax_call }
+    }, general_actions)
+  });
+
+  $.contextMenu({
+    selector: '.edit-time-cost-estimate-context-menu',
+    items:    $.extend({
+        heading: { name: kivi.t8('Time/cost estimate actions'), className: 'context-menu-heading' }
+      , save:    { name: kivi.t8('Save'),   icon: "save",  callback: kivi.requirement_spec.standard_time_cost_estimate_ajax_call }
+      , cancel:  { name: kivi.t8('Cancel'), icon: "close", callback: kivi.requirement_spec.standard_time_cost_estimate_ajax_call }
+    }, general_actions)
+  });
+
+  $.contextMenu({
+    selector: '#content',
+    items:    general_actions
+  });
+
+  events = {
+      show: kivi.requirement_spec.item_popup_menu_shown
+    , hide: kivi.requirement_spec.item_popup_menu_hidden
+  };
+
+  $.contextMenu({
+    selector: '.section-context-menu',
+    events:   events,
+    items:    $.extend({
+        heading:            { name: kivi.t8('Section/Function block actions'), className: 'context-menu-heading' }
+      , add_section:        { name: kivi.t8('Add section'),        icon: "add",    callback: kivi.requirement_spec.standard_item_ajax_call }
+      , add_function_block: { name: kivi.t8('Add function block'), icon: "add",    callback: kivi.requirement_spec.standard_item_ajax_call, disabled: kivi.requirement_spec.disable_add_function_block_command }
+      , sep1:               "---------"
+      , edit:               { name: kivi.t8('Edit'),               icon: "edit",   callback: kivi.requirement_spec.standard_item_ajax_call, disabled: kivi.requirement_spec.disable_edit_item_commands }
+      , delete:             { name: kivi.t8('Delete'),             icon: "delete", callback: kivi.requirement_spec.ask_delete_item,         disabled: kivi.requirement_spec.disable_edit_item_commands }
+      , sep2:               "---------"
+      , flag:               { name: kivi.t8('Toggle marker'),      icon: "flag",   callback: kivi.requirement_spec.standard_item_ajax_call, disabled: kivi.requirement_spec.disable_edit_item_commands }
+      , sep3:               "---------"
+      , copy:               { name: kivi.t8('Copy'),               icon: "copy",   callback: kivi.requirement_spec.standard_item_ajax_call, disabled: kivi.requirement_spec.disable_edit_item_commands }
+      , paste:              { name: kivi.t8('Paste'),              icon: "paste",  callback: kivi.requirement_spec.standard_item_ajax_call }
+    }, general_actions)
+  });
+
+  $.contextMenu({
+    selector: '.function-block-context-menu,.sub-function-block-context-menu',
+    events:   events,
+    items:    $.extend({
+        heading:                { name: kivi.t8('Function block actions'), className: 'context-menu-heading' }
+      , add_function_block:     { name: kivi.t8('Add function block'),     icon: "add",    callback: kivi.requirement_spec.standard_item_ajax_call }
+      , add_sub_function_block: { name: kivi.t8('Add sub function block'), icon: "add",    callback: kivi.requirement_spec.standard_item_ajax_call }
+      , sep1:                   "---------"
+      , edit:                   { name: kivi.t8('Edit'),                   icon: "edit",   callback: kivi.requirement_spec.standard_item_ajax_call, disabled: kivi.requirement_spec.disable_edit_item_commands }
+      , delete:                 { name: kivi.t8('Delete'),                 icon: "delete", callback: kivi.requirement_spec.ask_delete_item,         disabled: kivi.requirement_spec.disable_edit_item_commands }
+      , sep2:                   "---------"
+      , flag:                   { name: kivi.t8('Toggle marker'),          icon: "flag",   callback: kivi.requirement_spec.standard_item_ajax_call, disabled: kivi.requirement_spec.disable_edit_item_commands }
+      , sep3:                   "---------"
+      , copy:                   { name: kivi.t8('Copy'),                   icon: "copy",   callback: kivi.requirement_spec.standard_item_ajax_call, disabled: kivi.requirement_spec.disable_edit_item_commands }
+      , paste:                  { name: kivi.t8('Paste'),                  icon: "paste",  callback: kivi.requirement_spec.standard_item_ajax_call }
+    }, general_actions)
+  });
+};
+
+});                             // end of namespace(...., function() {...