function popUp(url) {

    w = window.open(url, "FOTO", "scrollbars=yes,height=680,width=680,left=0,top=0,dependent=no,resizable=yes");
//    w.title="Foto gross";
    w.focus();
}

function toggleImage() {
	var Image = document.images[0];
	var popUpSrc = Image.src;
	var originSrc ="unknown";
	if(popUpSrc.lastIndexOf("_pop") > 0) {
		originSrc = popUpSrc.replace(/_pop/, "");
	} else {
		originSrc = popUpSrc + "_pop";
	}
	Image.src = originSrc;
}