Ciao a tutti
non riesco a fare il refresh di una singola immagine.
potete aiutarmi??

questa è parte della mia pagina

<!DOCTYPE html>
<html lang="en">


<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="">
<meta name="author" content="">


<title>webcam cesena</title>


<!-- Bootstrap core CSS -->
<link href="css/bootstrap.css" rel="stylesheet">


<!-- Custom CSS for the '3 Col Portfolio' Template -->
<link href="css/portfolio-item.css" rel="stylesheet">
<!--
<script>

function autoReload()
{
var timeID = setTimeout("location.href= 'index.html'", 60000)
}

</script>
-->


<script type="text/javascript" language="JavaScript">
newImage = new Image();

function LoadNewImage()
{
var unique = new Date();
document.images.webcam.src = newImage.src;
newImage.src = "https://dl.dropboxusercontent.com/u/45909/webcamwebcam.jpg?time=" + unique.getTime();
}


function InitialImage()
{
var unique = new Date();
newImage.onload = LoadNewImage;
newImage.src = "https://dl.dropboxusercontent.com/u/45909/webcamwebcam.jpg?time=" + unique.getTime();
document.images.webcam.onload="";
}
</script>










</head>


<body>
<!--
onload="autoReload()"
-->
<div class="container">


<div class="row">


<div class="col-lg-12">
<h1 class="page-header">Webcam Cesena
<small></small>
</h1>
</div>


</div>


<div class="row">


<div class="col-md-8">
<img class="img-responsive" src="https://dl.dropboxusercontent.com/u/45909/webcamwebcam.jpg" name="webcam" onload="InitialImage()">
</div>