jQuery select different DIV on hover

When hovering on one div, highlight a different div.

by enigmarm

HTML

<div id="a">This is a div</div>
<div id="b">This is another div</div>

CSS

div {
    background-color: lightgray;
}
.yellow {
    background-color: yellow;
}

JavaScript

$('#b').hover(
    function(){ $('#a').addClass('yellow') },
    function(){ $('#a').removeClass('yellow') }
)