Change Select List Option background colour on hover

Answer 1

I realise this is an older question, but I recently came across this need and came up with the following solution using jQuery and CSS:

jQuery('select[name*="lstDestinations"] option').hover(
        function() {
            jQuery(this).addClass('highlight');
        }, function() {
            jQuery(this).removeClass('highlight');
        }
    );

and the css:

.highlight {
    background-color:#333;
    cursor:pointer;
}

Perhaps this helps someone else.