Web page authors often utilize transparent graphics for spacing. Adding a text description to these elements will produce unnecessary clutter for users of screen readers. For such graphics, an empty ALT attribute is useful.
Example of source code: <IMG src="transparent.gif" alt="">
PS: Alt atribut je još jedan dokaz da je Microsoft bio prilično svojeglav prilikom kreiranja IEa. Alt attribut je zamena za sliku ako browser ne može da je prikaže ili je prikaz slika isključen, a ne dodatne informacije o slici.
[Ovu poruku je menjao Ilija Studen dana 20.02.2005. u 22:16 GMT+1]
Code: function ripImgsAlt ()
{
var imgs = document.getElementsByTagName ('img');
for (var i = 0; i < imgs.length; i++)
{
imgs [i].removeAttribute ('alt');
}
}
Mozilla Firefox and the alt Attribute
If you use the alt attribute in Firefox on images and image maps the text will not show on mouse-over as in other browsers.
Firefox uses the alt attribute the way it's meant to be used, like an alternative text if the image won't load, not as a mouse-over text.
Firefox does support mouse-over comments on images or image maps if you use a title attribute in the <img> tag.
E.g. <img src="image.gif" alt="bla" title="bla bla bla"
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