var webcamimage; 
var imgBase="getcam.php?c=";
var c = 0; 
function count() {
	webcamimage.src = imgBase + (++c);
}
function init() 
{ 
	webcamimage = document.getElementById("webcamimage");
	if( webcamimage ) 
	{ 
		setInterval("count()", interval);
	} 
}