function validateCityStateCombination( sender, args )
{
	if( _txtZip.value.length < 1 )
	{
		if( _txtCity.value == null || _txtCity.value.length < 1 )
		{
			args.IsValid = false;
		}
	}
}

function validateStateCityCombination( sender, args )
{
	if( _txtZip.value.length < 1 )
	{
		if( _cboState.selectedIndex == 0 )
		{
			args.IsValid = false;
		}
	}
}