var form = document.prenotazioni;
function set_mesi(check) {
	if (check==0 && form.mmpartenza.selectedIndex < form.mmarrivo.selectedIndex) form.mmpartenza.selectedIndex = form.mmarrivo.selectedIndex;
/*	else if (check==1 && form.mmpartenza.selectedIndex < form.mmarrivo.selectedIndex) form.mmarrivo.selectedIndex = form.mmpartenza.selectedIndex;*/
}
function set_giorni(check) {
	if (check==0 && form.ggpartenza.selectedIndex < form.ggarrivo.selectedIndex && form.mmpartenza.selectedIndex <= form.mmarrivo.selectedIndex) form.ggpartenza.selectedIndex = form.ggarrivo.selectedIndex;
/*	else if (check==1 && form.ggpartenza.selectedIndex < form.ggarrivo.selectedIndex && form.mmpartenza.selectedIndex <= form.mmarrivo.selectedIndex) form.ggarrivo.selectedIndex = form.ggpartenza.selectedIndex;*/
}