function addBookmark(city, street, streetnumber, streetnumberExt, url) {
	
	var name = 'Daniels Stokvis Makelaardij, ' + city + ', ' + street + ', ' + streetnumber + ' ' + streetnumberExt;

	if(window.sidebar)
		window.sidebar.addPanel(name, url, '');
	else if(document.all)
		window.external.AddFavorite(url, name);
	else
		alert('Sorry, uw browsers ondersteunt deze actie niet.');
	
};