document.onclick = show_hide;

function show_hide (e) {
	e = e || event;
	oRef = (e.srcElement||e.target);
	if (oRef.id == "closeZoom") {
		document.getElementById("zoom_content").className = "Cache";
		return true;
	}
	if (oRef.id.substring (0, 3) != "ps_")
		return true;
	document.getElementById("theImageZoomed").src = "images/collec/" + oRef.id + "-D.jpg";
	document.getElementById("theRefZoomed").innerHTML =  oRef.id;
	document.getElementById("zoom_content").className = "Montre";
	return true;
}