function showDistributor( cod )
{
	document.getElementById('d').value=cod;
	document.getElementById('zone_selector').submit();
}

function showRegions()
{
	document.getElementById('zone_selector').submit();
}

function showDistributors()
{
	document.getElementById('zone_selector').submit();
}

function showOfficeCountries()
{
	document.getElementById('zone_selector').submit();
}