function changePaymentType( select )
{
	var display_cc = 'none';
	var display_check = 'none';
	if ( select.value != '' )
	{
		if (select.value == 'authorize')
		{
			display_cc = 'block';
		}
		
		if (select.value == 'check')
		{
			display_check = 'block';
		}
	}
	
	var cc_form = document.getElementById('cc_form');	
	var check_form = document.getElementById('check_form');	
	var check_help = document.getElementById('check_help');
	cc_form.style.display = display_cc;
	check_form.style.display = display_check;
	check_help.style.display = display_check;
}

function changeProgram( radio )
{
	var program = 'premium';
	var hidden_program = 'monthly';
	if (radio.value == 2)
	{
		program = 'monthly';
		hidden_program = 'premium';
	}
	
	var program_box = document.getElementById( program + '-box' );
	var hidden_program_box = document.getElementById( hidden_program + '-box' );
	
	if ( !program_box || !hidden_program_box ) return;
	program_box.style.display = 'block';
	hidden_program_box.style.display = 'none';
}