function apriFinestra(path_file, titolo_pg, ww, hh,scroller_x){
		if(scroller_x == false)	scroller_x = "no";
		else scroller_x = "yes"
		window.open(path_file, "foto_zoom", "toolbar=no, directories=no, location=no, status=no, menubar=no, resizable=no, scrollbars="+scroller_x+", width="+ww+", height="+hh+" top="+((screen.height/2)-(hh/2))+" left="+((screen.width/2)-(ww/2)));
	}