Amaya user interface Instrukcja Obsługi Pobierz pdf (Strona 40)

with low-quality connections to request the alternate view, because text is transmitted much faster than

images.

The alternate text should replace the image in function as well. For example, if you use the image as an

icon that links to a reference point, then the title of the reference itself is a good alternate text.

There are cases where an image is used for purely visual effect, and does not add any information value

to the page. In this case, it is appropriate to use a blank alternate text, although you must still define it.

When the image conveys important information that is not available from the text of the document, you

must provide a description of the information. The longdesc option in the Attributes tool enables you

to link a description to the image. This description can be a URI (a separate document), or named part of

the current document.

To view how a page might be presented without the images, use show alternate (Views /Show

alternate). If the page is spoken by a voice output system, then the alternate view might simply be read

out.

13.5. Using client-side image maps

Amaya enables you to use client-side image maps.

To activate an area in an image map

• Double-click on the area within the image. Amaya finds the URI associated to this area, and

opens it in the browser.

To display the existing areas within an image map

• Select Show map areas from the Views menu.

Note: You can also display existing areas directly from the keyboard with Ctrl-u Ctrl-m.

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Amaya user interface Instrukcja Obsługi Strona 40