var browserType;

if (document.layers) {browserType = "nn4"}
if (document.all) {browserType = "ie"}
if (window.navigator.userAgent.toLowerCase().match("gecko")) {browserType= "gecko"}

function hide(id) {
  if (browserType == "gecko" )
     document.poppedLayer = eval('document.getElementById(id)');
  else if (browserType == "ie")
     document.poppedLayer = eval('document.all[\'id\']');
  else
     document.poppedLayer = eval('document.layers[id]');
  document.poppedLayer.style.visibility = "hidden";
}

function show(id) {
  if (browserType == "gecko" )
     document.poppedLayer = eval('document.getElementById(id)');
  else if (browserType == "ie")
     document.poppedLayer = eval('document.all[\d]');
  else
     document.poppedLayer = eval('document.layers[id]');
  document.poppedLayer.style.visibility = "visible";
}

function clearForms()
{
  var i;
  for (i = 0; (i < document.forms.length); i++) {
    document.forms[i].reset();
  }
}

function toggle(postid) { 
var whichpost = document.getElementById(postid); 
if (whichpost.className=="expand") { 
whichpost.className="collapse"; 
} 
else { 
whichpost.className="expand"; 
} 
} 

function rotate(idA, idB) {
toggle(idA);
toggle(idB);
}