html: hover table column [duplicate]

Answer 1

I have a more simple solution (Live example: http://jsfiddle.net/q3HHt/1/)

HTML:

CSS:

table, td {
    border: 1px solid black;
}

td {
    width: 40px;  
    height: 40px;
}

.highlighted {
    background-color: #348A75;
}

jQuery:

$('td').hover(function() {
    var t = parseInt($(this).index()) + 1;
    $('td:nth-child(' + t + ')').addClass('highlighted');
},
function() {
    var t = parseInt($(this).index()) + 1;
    $('td:nth-child(' + t + ')').removeClass('highlighted');
});

Live example: http://jsfiddle.net/q3HHt/1/