function oeffnefenster (url) {
	
 fenster = window.open(url, "fenster1", "width=450,height=500,status=no,scrollbars=yes,resizeable=no");
 fenster.focus();
 
}
function ShowHide(id) {
	
    obj = document.getElementsByTagName("div");
    
    if (obj[id].style.display == 'block'){
    	
    	obj[id].style.display = 'none';
    	
    } else {
    	
    	obj[id].style.display = 'block';
    	
    }
    
}