This page is intended to guide you through using the site.

To find out how accessible this site is, visit the RGAA 3.0 compliance statement.

The Web Accessibility Initiative (WAI) defines web accessibility as follows:

Web accessibility means that websites, tools, and technologies are designed and developed so that people with disabilities can use them. More specifically, people can: perceive, understand, navigate, and interact with the Web. contribute to the Web. Web accessibility also benefits others, including old people, whose abilities change with age.
Web accessibility includes all disabilities that affect access to the Web, including visual, hearing, physical, speech, cognitive and neurological disabilities.
See the introduction to the WAI.

Structure of the site

Main navigation menu

The site is structured into three sections, each accessible from the main navigation menu:

  • Discover Cergy-Pontoise,
  • Disciplines,
  • Interactive map.


Other navigation systems

  • a list of sections/headings displayed in the footer;
  • a site map accessible via a link in the footer;
  • a trail directly below the main menu shows you where you are and how far you have navigated through the site to get to the page you are on.


Navigation by headings

The level-1 heading corresponds to the heading of the article consulted.
The level-2 heading is a paragraph heading.
The level-3 heading is a paragraph sub-heading.
Most assistive technologies and browsers facilitate navigation by headings. Most screen readers provide a feature that allows you to jump to the next heading.


Plugins required to view the site

This site provides some downloadable documents that require the use of appropriate software:

  • PDF reader,
  • Spreadsheet,
  • Word processing software.


Keyboard navigation for interactive components

The site embeds components with integrated JavaScript technology. Their structure and keyboard behaviour are in line with international recommendations.

For these components to work predictably and according to the instructions we provide below, screen reader users must get to them in Form Mode, or activate Form Mode once they have accessed the site.

Here is a list of the components present on the site and their use on a keyboard.


Tab system

A tab system is a list of screens that can be activated via links (tabs) which will display content. Only one screen can be viewed at a time: when a particular tab is activated, the others are hidden.

Once the content is visible, the TAB key will allow you to access the content of the selected screen.

  • When you first encounter a tab system, you will be directed to the heading of the first tab (by default, the first tab of the system is the tab that is visible);
  • If you are using a screen reader:
    • NVDA will display “tab, [name], selected tab 1 of X”, where “X” is the total number of tabs;
    • Jaws will display “tab [name] selected”;
    • VoiceOver will display “screen 1, selected 1 of X”, where “X” is the total number of tabs.
  • The RIGHT and LEFT arrows allow you to navigate from one tab heading to another, activating their associated contents;
  • The TAB key allows you to go to the displayed screen or one of its components;
  • At this point, you can browse the contents of the active tab, while the TAB key will direct you to the interactive elements of the content;
  • To browse the list of tab headings again, tabulate backwards until the focus is on the heading of the active tab.
  • Other keyboard interactions (to be documented only if implemented):
    • START will take you to the first screen;
    • END will take you to the last screen;
    • ALT + PAGE UP, from a screen, will take you to the next screen;
    • ALT + PAGE DOWN, from a screen, will take you to the previous screen.


Modal window

A modal window is an element of the page that is superimposed on the rest of the page, like an alert message. This is neither a new window nor tab. A modal window is contained within the page being viewed.

  • If you are using a screen reader while a modal window is opening:
    • NVDA will display “[Name] dialogue”;
    • Jaws will display “[name] Dialog Box”;
    • VoiceOver will display “[Name] with X elements, dialogue”.
  • Once a modal window is open, the TAB key will you to access all elements in the modal window. Navigation is restricted to this window while it is open;
  • To close the window, you can either hit the “Close” button or use the ESC key.



A tooltip is an additional piece of information placed on an interactive element that appears or is played back when you tabulate above it, or when the cursor hovers over it.

  • When you reach an item that contains a tooltip, additional information will appear or be played back to you if you are using a screen reader.
  • The tooltip will disappear and no longer be accessible when you leave the item concerned or press the ESC key.



A menu is a particular navigation menu system. Unlike the typical use of the tab key in navigation menus, a rich menu component uses a combination of the directional arrows and the ENTER key.

  • If you are using a screen reader when you reach a menu:
    • NVDA will display “[Name] sub-menu 1 of X”, where X is the number of menu entries;
    • Jaws will display “Menu bar [name]”;
    • VoiceOver will display “Menu [name] menu command”.
  • The RIGHT key will take you to the following first-level menu entries;
  • The LEFT key will take you to the previous first-level menu entries;
  • The UP and DOWN keys will expand the sub-menu (if there is one) and take you to the entries in the sub-menu;
  • The ENTER key will take you directly to the first entry in a sub-menu (if one exists);
  • The ENTER key will allow you to activate the links.
  • Other keyboard interactions (to be documented only if implemented):
    • ESC will close the displayed sub-menu;
    • Any LETTERkey will activate the sub-menu entry that begins with the typed letter;


Tree structure

A tree structure works like a folder system on a computer. It is a nested list of items that can be expanded or collapsed.

  • If you are using a screen reader when you reach a tree structure:
    • NVDA will display “Tree structure, [name] reduced level 1”;
    • Jaws will display “Tree structure [name] closed selected, 1 of X”, where X is the number of entries in the tree;
    • VoiceOver will display “Table”.
  • You can use the arrow keys to navigate between the active (implemented) entries;
  • The RIGHT key will expand the sub-sections (if any) of an entry;
  • The LEFT key will collapse the sub-sections of an entry.


Reporting a malfunction

If, despite our surveillance, you encounter any accessibility problems on our site, please do not hesitate to contact us at


Rights Advocate

If you notice any instance of a lack of accessibility that prevents you from accessing certain content or features on the site, and if you report it to us and do not manage to obtain a quick response from us, you are entitled to send your complaints or a request for referral to the Rights Advocate. There are several ways to do this: