Both the "normal" interactive buttons [ Insert->Interactive Buttons ] and the "Swap [background] Buttons" alternative share some Accessibility shortfalls:
- the text on the button is an image and cannot be resized by the user.
- For the "Swap [background] Buttons" method, lack of CSS support in the browser will make the buttons disappear. Adding a title attribute to the link may alleviate this problem a little - but only when the user hovers over the link (if they ever find the link to hover over, that is).
<a href="#" title="Test Button"><img alt="Test Button" src="images/tp.gif" width="122" height="24" /></a>
- Enlarging the text may cause the link text in the "Plain Background" method to overflow the button background. This can be prevented by planning the button sizes beforehand.
The tables below emulate some of the problems and deficiencies.