var ns4 = document.layers;
var ns6sup = document.getElementById && !document.all;

if (ns4 || ns6sup) for (i=0;i<document.images.length;i++)
{	if (document.images[i].src.indexOf('photos')!=-1)	
	{	document.images[i].onclick=Appel_Zoom;
		if (ns6sup)	document.images[i].style.cursor="pointer";
		document.images[i].onmouseover=Statut_on;
		document.images[i].onmouseout=Statut_off;
	}
}