function webCam(url, interval, firstTime)
{
	if(firstTime)
	{
		document.write("<img id=\"netCam\" src=\"" + url + "\" border=\"0\"/>");
		firstTime = false;
	}
	tmp = new Date();
	tmp = tmp.getTime();
	document.getElementById('netCam').src = url + "&timestamp=" + tmp;

	setTimeout("webCam('" + url + "'," + interval + "," + firstTime + ")", interval * 1000);
}