function toogle(id, label) {
    var link = document.getElementById("act_"+id);
    var element = document.getElementById("con_"+id);
    if(element.style.display == 'block') {
        element.style.display = 'none';
        link.innerHTML = "+ " + label + "<br />";
    } else {
        element.style.display = 'block';
        link.innerHTML = "- " + label;
    }
}