function toggleView()
{
	if (('none' == document.getElementById('page_1_2').style.display) && 'none' == document.getElementById('page_2_2').style.display)
	{
		document.getElementById('page_1_1').style.display = 'none';
		document.getElementById('page_1_2').style.display = '';

		document.getElementById('page_2_1').style.display = 'none';
		document.getElementById('page_2_2').style.display = '';

		document.getElementById('page_message').innerHTML = 'Vorige pagina';
	}
	else
	{
		document.getElementById('page_1_1').style.display = '';
		document.getElementById('page_1_2').style.display = 'none';

		document.getElementById('page_2_1').style.display = '';
		document.getElementById('page_2_2').style.display = 'none';

		document.getElementById('page_message').innerHTML = 'Volgende pagina';
	}
}