//
//
//
//
  function setdis(invis,vis) {
    invis.style.display = 'none';
    vis.style.display = 'inline';
  }
  var collapseDivs;
  var expandDivs;
  function extractDivs(cls) {
    var divs = document.getElementsByTagName("div");
    var res = new Array();
    for (var j = 0, i = 0; i < divs.length; i++) {
     if (divs[i].className == cls)
       res[j++] = divs[i];
    }
    return res;
  }
  function procAll(expandState,collapseState) {
    for (var i = 0; i < expandDivs.length; i++) {
      expandDivs[i].style.display = expandState;
    }
    for (var i = 0; i < collapseDivs.length; i++) {
      collapseDivs[i].style.display = collapseState;
    }
  }
  function collapseAll() {
    setup();
    procAll('none','inline');
  }
  function expandAll() {
    setup();
    procAll('inline','none');
  }
  function setup() {
    expandDivs = extractDivs("expand");
    collapseDivs = extractDivs("collapse");
    // document.write("edivs ",expandDivs.length);
  }