pfeil = new Image();
	pfeil.src = "/fileadmin/blumenbecker/images/pfeil.gif"; /* mb, 2009-08-20 */
	pfeil_u = new Image(); 
	pfeil_u.src = "/fileadmin/blumenbecker/images/pfeil_unten.gif"; /* mb, 2009-08-20 */

	var ie4 = false;
	if(document.all) {
		ie4 = true;
	}
	
	function getObject(id) {
		if (ie4) {
			return document.all[id];
		} else {
			return document.getElementById(id);
		}
	}

	function toggle(id) {
		var d = getObject('b_'+id);
		if (d.style.display == 'none') {
			d.style.display = 'block';
			document.getElementById('b'+id).src=pfeil_u.src;
	} else {
			d.style.display = 'none';
			document.getElementById('b'+id).src=pfeil.src;
		}
		
	}