getElementById("icButton").accessKey = "i";
Different browsers and different platforms implement keyboard hot keys differently;
on a Mac, the hot key pattern is typically Command+ key, Mozilla
browsers user Shift+Alt+ key, and Internet Explorer uses Alt+ key.
284 Guidance for a Relying Party
When the client lacks the capability to use Information Cards,
the developer has the choice of simply hiding the new functionality
or displaying it in such a way that the user can??™t attempt to
use it, but does have the opportunity to learn about it. Figure 5-5
shows a dialog box from such a web page.
When the client doesn??™t support Information Cards, the sign-in
button is shown, but it is disabled. There is also a link for the
user to click to ?¬?nd out more about Information Cards (Why
can??™t I use this?); the link leads to a page that informs users not
only what Information Cards are but also why they can??™t use
them and how they can get support for them on their particular
platform.
Disabled elements
are usually shaded
light gray
Figure 5-5 User experience in a site without Information Card support
285
Signing In
The sign-in process itself is fast and quite simple.
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