// used in registration step 1, modifica-residenza
function fill_provinces(the_form)
{
	var select_zones = the_form.zone
	var select_provinces = the_form.province
	var intItem, zone_id

	if ( zone_id == null )
	{
		zone_id = select_zones.options[ select_zones.selectedIndex ].value
	}
	
	select_provinces.options.length = 1; // lascio seleziona...

	for ( var i = 0; i < arProvinces.length; i++ )
	{
		if ( arProvinces[i][0] == zone_id )
		{
			select_provinces.options[ select_provinces.options.length ] = new Option( arProvinces[i][2], arProvinces[i][1] );
		}
	}

	select_provinces.selectedIndex = 0;
}