You don’t need JavaScript for this.
Some CSS would do it. Here is an example:
<html>
<style type="text/css">
.section { background:#ccc; }
.layer { background:#ddd; }
.section:hover img { border:2px solid #333; }
.section:hover .layer { border:2px solid #F90; }
</style>
</head>
<body>
<div class="section">
<img src="https://stackoverflow.com/questions/1462360/myImage.jpg" />
<div class="layer">Lorem Ipsum</div>
</div>
</body>
</html>