function getZusatz(ID) {
	$('#ajaxloading').show();  
	var data = 'ID=' + ID;
	$.ajax({
		url: "/inc/js_zusatz.php",	
		type: "POST",		
		data: data,		
		cache: false,
		success: function (html) {	
		
			//hide the progress bar
			$('#ajaxloading').hide();	
			
			//add the content retrieved from ajax and put it in the #content div
			$('#zusatz').html(html);
			
			//display the body with fadeIn transition
			$('#content').fadeIn('slow');		
		}		
	});
}