function nuova_finestra(URL, LUNGHEZZA, ALTEZZA) { 

window.open(URL,"",'top=0,left=0,toolbar=0,location=0,directories=0,status=1, menubar=0,scrollbars=1,resizable=1,width='+ LUNGHEZZA +',height=' + ALTEZZA +'');}

function vedi_img_w(URL) {window.open(URL, "",'top=0,left=0,toolbar=0,location=0,directories=0,status=0,scrollbars=1,menubar=0,resizable=1, width=840, height=630,')}
   
function vedi_img_h(URL) {window.open(URL, "",'top=0,left=0,toolbar=0,location=0,directories=0,status=0,scrollbars=1,menubar=0,resizable=1, width=640, height=715,')}

function mouse_over(NOME,URL) { NOME.src=URL}
function mouse_out(NOME,URL) { NOME.src=URL}