metaInfo = false;
function toggleMetaInfo() {
  if (metaInfo == false) {
    if (document.all || document.getElementById) document.getElementById("metaInfo").style.visibility="visible";	// IE + Gecko
    else document.layers["metaInfo"].visibility="show"; // Netscape 4
    }
  else {
    if (document.all || document.getElementById) document.getElementById('metaInfo').style.visibility="hidden";	// IE + Gecko
    else document.layers["metaInfo"].visibility="hide";	// Netscape 4
    }
  metaInfo = !metaInfo;
  }