//SuchLayer---------------------------------------------------------------

var state = 'none';

function showhide(layer_ref) {
  if (state == 'block') {
    state = 'none';
  } else {
    state = 'block';
  }
  if (document.all) { //IS IE 4 or 5 (or 6 beta)
    eval( "document.all." + layer_ref + ".style.display = state");
  }
  if (document.layers) { //IS NETSCAPE 4 or below
    document.layers[layer_ref].display = state;
  }
  if (document.getElementById && !document.all) {
    maxwell_smart = document.getElementById(layer_ref);
    if (maxwell_smart.style.display == 'none') {
      maxwell_smart.style.display = 'block';
    } else {  
      maxwell_smart.style.display = 'none';
    }
  }
}