labelFocus - a JQuery plugin to increase accessibility of form elements for keyboard users
labelFocus is a JQuery plugin to enable highlighting of the labels of form fields when those form fields are focussed. It is intended to increase the accessibility of form elements - particularly checkboxes and radio buttons - when accessed by the keyboard. The problem it aims to overcome is that most browsers make it very hard to see when a checkbox or radio button has the focus.
The plugin works by adding the “focus” CSS class (or other class specified by the focusClass option) to the label of a form field, when that form field receives focus.
When used on a form element within a table, it will also apply the same CSS class to any “th” elements that appear to be appropriate for the current item - this is not very sophisticated, and may well fail or highlight the wrong header if used on a table with colspans or rowspans. This behaviour can be disabled by setting the highlightTables option to false.
This plugin requires JQuery 1.3+ (it was developed under JQuery 1.3.2).