function checkCheckboxValue(checkbox, id)
{
	// if the checbox is checked
	if(checkbox.checked)
	{
		displayID(id);
	}
	else
	{
		hideID(id)
	}
}

function displayID(id)
{
	// new Effect.SlideDown(document.getElementById(id));
	document.getElementById(id).style.display = 'block';	
}

function hideID(id)
{
	document.getElementById(id).style.display = 'none';	
}

function selectPrivate()
{
	// unable company name field
	/*
	document.getElementById('mf_cell_firmanavn').style.color = '#BBBBBB';
	document.getElementById('mf_cell_firmanavn').disabled = true;
	
	// unable company org no field
	document.getElementById('mf_cell_foretaksnummer').style.color = '#BBBBBB';
	document.getElementById('mf_cell_foretaksnummer').disabled = true;
	*/
	// hide company payment
	hideID('payment');
	hideID('invoice-address' );
	hideID( 'company_name' );
	$("#payment_card").attr( "checked", "checked" );
	$("#company").attr( "name", "company_deactivate" );
	$("#company_private").attr( "name", "company" );
}

function selectCompany()
{
	// enable company name field
	/*
	document.getElementById('mf_cell_firmanavn').style.color = '#000000';
	document.getElementById('mf_cell_firmanavn').disabled = false;

	// enable company org no field
	document.getElementById('mf_cell_foretaksnummer').style.color = '#000000';
	document.getElementById('mf_cell_foretaksnummer').disabled = false;
	*/

	
	// display company payment
	displayID('payment');
	displayID( 'invoice-address' );
	displayID( 'company_name' );
	$("#company").attr( "name", "company" );
	$("#company_private").attr( "name", "company_private" );
}