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Non spacer IMG with equvilant ALT tag, Non spacer IMG needs LONGDESC

Last post 02-28-2006, 2:18 PM by Adam. 1 replies.


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02-28-2006, 9:56 AM 16498

tech
Joined on 02-28-2006
Posts 1

Non spacer IMG with equvilant ALT tag, Non spacer IMG needs LONGDESC

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I have all of my images with alt tags. The alt filenames are = to the jpg/gif filename (without the extension). However, when I use Dreamweaver 8 to check for Accessibility it suggest Non spacer IMG with equivlant alt tag and Non Spacer IMG needs Longdesc. Can someone help me to clarify what is wrong with my alt and/or dreamweaver?

02-28-2006, 2:18 PM 16506 in reply to 16498

Adam
Joined on 09-23-2003
Aurora, ON
Posts 18,678

Re: Non spacer IMG with equvilant ALT tag, Non spacer IMG needs LONGDESC

Reply Quote

>>Non spacer IMG with equivlant alt tag

Please check if the current ALT description conveys the same meaning of the image.

It should explain the role the image plays in the page: why it's there, what does it represent, how does it present the information. If the image is used as the content of a link and you provide link text too, use a space as the ALT attribute value of the IMG element. In such a case link text should be the alternative description for the image.

If the image is used as a hidden link, then its ALT should describe the link destination.

However if the image has only decorative purposes (like bullets), its ALT string should be the empty string ("") or the blank one (" ").

Learn More

the W3C on how to include objects and images;
the HTML 4.0 standard on the IMG tag;
the W3C Accessibility guidelines on ALT descriptions;
the W3C on how to define the ALT attribute;
a tutorial on the use of ALT text in IMGs;
another tutorial on alternative content for graphics rich of examples;
J. Nielsen's Alert Box on ALT descriptions;
the 508 standard.

>>Non spacer IMG with valid LONGDESC

Please ensure that the link specified by the longdesc attribute is working.

Since not many browsers at the moment support the longdesc attribute, you may also want to place, near the image, a so called D-link, a normal textual link with label "D" pointing to an HTML page providing a full image description. Example:

<IMG src="chart.gif" alt="chart of beverages distribution"
    longdesc="chart.html"><A href="chart.html">D</A>

Alternatively, placing a rich textual description close to the image (like a caption) is a viable solution. In such a case you don't need the longdesc attribute or the D-link.

Learn More

the HTML 4.0 standard on the IMG tag;
the HTML 4.0 standard on the longdesc attribute;
the W3C on how to define the longdesc attribute;
some examples about LONGDESC and D-links;
the W3C on how to define the ALT attribute.

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