function showhide(where) {
 if (document.getElementById(where).style.display != "block") {
  document.getElementById(where).style.display = "block";
  if (navigator.appName.indexOf("Explorer") != -1) {
  	document.getElementById(where).previousSibling.previousSibling.style.display = "none";
  	document.getElementById(where).previousSibling.style.display = "block";
  } else if (navigator.appName.indexOf("Netscape") != -1) {
  	document.getElementById(where).previousSibling.previousSibling.previousSibling.previousSibling.style.display = "none";
  	document.getElementById(where).previousSibling.previousSibling.style.display = "block";
  }
 }
 else {
  document.getElementById(where).style.display = "none";
  if (navigator.appName.indexOf("Explorer") != -1) {
  	document.getElementById(where).previousSibling.previousSibling.style.display = "block";
  	document.getElementById(where).previousSibling.style.display = "none";
  } else if (navigator.appName.indexOf("Netscape") != -1) {
  	document.getElementById(where).previousSibling.previousSibling.previousSibling.previousSibling.style.display = "block";
  	document.getElementById(where).previousSibling.previousSibling.style.display = "none";
  }
 }
}