// This file is part of Zoph.
//
// Zoph is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
// 
// Zoph is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Zoph; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

function expand(obj) {
    obj.nextSibling.nextSibling.style.display="block";
    obj.innerHTML="- ";
    obj.onclick=closeexpand;
    }

function collapse(obj) {
    obj.nextSibling.nextSibling.style.display="none";
    obj.innerHTML="+ ";
    obj.onclick=openexpand;
    }

function openexpand() {
    expand(this);
    }

function closeexpand() {
    collapse(this);
    }

function collapseall() {
    nodes=getElementsByClass('treenode');
    for(i in nodes) {
        collapse(nodes[i]);
    }
}

function expandall() {
    nodes=getElementsByClass('treenode');
    for(i in nodes) {
        expand(nodes[i]);
    }
}