function email(who) {
  document.write('<a href="mailto: ' + who + '@gamershell.com">');
}

var lastClicked = 'home';
function process(name) {
  if (document.getElementById(name).style.display == 'none') {
    if (document.getElementById(lastClicked))
      document.getElementById(lastClicked).style.display = 'none';

    lastClicked = name;
    document.getElementById(name).style.display = '';
  } else {
    document.getElementById(name).style.display = 'none';
  }
}