highlighttext="-";
normaltext="+";

// Adding backwards compatibility.
if (document.getElementById && document.createTextNode) {
  document.write('<style type="text/css">#advanced{display:none;}</style>');
  document.write('<style type="text/css">#mname{display:none;}</style>');
  document.write('<style type="text/css">#mat{display:none;}</style>');
  document.write('<style type="text/css">#aname{display:none;}</style>');
  document.write('<style type="text/css">#med{display:none;}</style>');
}

// Toggles visibility of division elements.
function toggle(element,label) {

  if (document.getElementById && document.createTextNode) {
  
    t = document.getElementById(element);
    // fixed problem with mozilla and childNodes
    v = document.getElementById(label).childNodes.item(0);
    
    if (t.style.display != 'block') {
      t.style.display = 'block';
      v.nodeValue = v.nodeValue.replace(normaltext,highlighttext);
    } else {
      t.style.display = 'none';
      v.nodeValue = v.nodeValue.replace(highlighttext,normaltext);
    }
    
  }
} 

// function displays the correct form depending on the option.
function searchform(name) {

  if (document.getElementById && document.createTextNode) {
 
    if ((name == 'craft') || (name == 'eagle')) {
      document.getElementById('aname').style.display = 'none';
      document.getElementById('med').style.display = 'none';
      document.getElementById('amname').style.display = 'none';
      document.getElementById('medmat').style.display = 'none';
      document.getElementById('mname').style.display = 'block';
      document.getElementById('mat').style.display = 'block';
    } else if ((name == 'art')) {
      document.getElementById('amname').style.display = 'none';
      document.getElementById('medmat').style.display = 'none';
      document.getElementById('aname').style.display = 'block';
      document.getElementById('med').style.display = 'block';
      document.getElementById('mname').style.display = 'none';
      document.getElementById('mat').style.display = 'none';
    } else {
      document.getElementById('amname').style.display = 'block';
      document.getElementById('medmat').style.display = 'block';
      document.getElementById('aname').style.display = 'none';
      document.getElementById('med').style.display = 'none';
      document.getElementById('mname').style.display = 'none';
      document.getElementById('mat').style.display = 'none';
    }
    
  }
}