function set_sector(select)
	{
		var form	= document.forms['aanmelding'];
		var radio	= form.sector;

		if ( 0 <= select )
		{
			form.sector[select].select		= true;
			form.sector[1 - select].select = false;
		}
		if ( form.sector[0].select )
		{
    	document.getElementById('overig').style.display		= 'none';
			document.getElementById('overig').style.visibility	= 'hidden';
		}
		else
		{
			document.getElementById('overig').style.display		= 'none';
			document.getElementById('overig').style.visibility	= 'hidden';
		}
    if ( form.sector[1].select )
		{
			document.getElementById('overig').style.display		= 'inline';
			document.getElementById('overig').style.visibility	= 'visible';
		}
		else
		{
			document.getElementById('overig').style.display		= 'none';
			document.getElementById('overig').style.visibility	= 'hidden';
		}
		return true;
  }
  
function loader()
	{
		set_sector(-1);
	}