function handleClick() {
  if (document.getElementById("help").style.visibility != "visible")
    {
    document.getElementById("help").style.visibility = "visible";
    document.getElementById("button").value = "Show Other Button";
  }
  else {
    document.getElementById("help").style.visibility = "hidden";
    document.getElementById("button").value = "Hide Other Button";
  }
}
function classoggle(tag, classa, classb) {
   if (tag.className==classa){
      tag.className=classb;
   } else {
      tag.className=classa;
}
}
function visoggle(index, me) {
 var d = document.getElementById(index);
 classoggle(d, 'hideMe', 'showMe');
   if (me!=undefined) {
      if (me.src == closePicture){
         me.src = openPicture; }
      else {
         me.src = closePicture;
      }
    }
}
function collapseAll(start, exp) {
if (exp == 1) {
   var newClass = 'showMe';
   var newPic = openPicture;
   var oldPic = closePicture;
  } else {
   var newClass = 'hideMe';
   var newPic = closePicture;
   var oldPic = openPicture;
  }
 var allDivs = document.getElementsByTagName('div');
 var allImgs = document.getElementsByTagName('img');
 for (i=0; i < allDivs.length; i++) {
   if (allDivs[i].id.indexOf(start) > -1) {
    allDivs[i].className = newClass
   }
 }
 for (i=0; i < allImgs.length; i++) {
    if (allImgs[i].src == oldPic) {
      allImgs[i].src = newPic
    }
 }
}