HTML
<img src="http://orgnsm.org/camoff.jpg" alt="Webcam" id="webcamImage"/></div>
JavaScript
function refreshCam(id, file) {
var today = new Date();
var h = today.getHours();
var m = today.getMinutes();
var s = today.getSeconds();
document.getElementById(id).src = file + "?time="+h+m+s;
setTimeout('refreshCam("webcamImage","'+file+'")',10000);
}
window.onload = function(){
if( document.getElementById("webcamImage") )
refreshCam( "webcamImage","http://orgnsm.org/webcam.jpg" );
}