function displayThis(e){ 
    var e1 = e.nextSibling;
    while(e1!=null){
        if(e1.nodeName=='UL'){
            e1.style.display = (e1.style.display=='none') ? 'block' : 'none';
            e.src = (e1.style.display=='none') ? 'fileadmin/templates/images/list_ul_bg_plus.png' : 'fileadmin/templates/images/list_ul_bg_minus.png';
        }
        if(e1.nodeName=='A'){
            if(e1.getElementsByTagName("ul").length > 0){
                for(i=0;i<e1.getElementsByTagName("ul").length;i++){
                    it = e1.getElementsByTagName("ul");
                    it[i].style.display = (it[i].style.display=='none') ? 'block' : 'none';
                    e.src = (it[i].style.display=='none') ? 'fileadmin/templates/images/list_ul_bg_plus.png' : 'fileadmin/templates/images/list_ul_bg_minus.png';
                }
            }
        }
        e1 = e1.nextSibling;
    }
}