(l) SCRIPTING LANGUAGES
People who use screen readers do not use the mouse. Additionally, people with mobility impairments often use special hardware instead of the standard mouse and/or keyboard. For this reason, scripts need to be accessible to people using alternative input devices.
A good way of testing the accessibility of scripts is to try using them with the keyboard only (tab and enter keys) instead of the mouse. Try this technique to test the accessibility of your cascading menus and rollover buttons.
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