function bookmarksite(title)
{
	url = location.href
   if (document.all)
   {
      window.external.AddFavorite(url, title);
   }
   else if (window.sidebar)
   {
      window.sidebar.addPanel(title, url, "");
   }
}

/*
function change_box(item){
	var active = document.getElementById(item).checked;
	alert(active);	
}
*/

function close_filter(){
	document.getElementById('filter').style.display = 'none';
	document.getElementById('filter_weergeven').style.display = 'block';
}

function geef_filter(){
	document.getElementById('filter').style.display = '';
	document.getElementById('filter_weergeven').style.display = 'none';
}