function flipto(layer) { 
  // flip from gallery to another div to display info. 
  // James Barros 2010-07-01
  display_zone = layer; 
  hide_projects(); 
  document.getElementById("gallery").style.display = "none"; 
  document.getElementById("biography").style.display = "none"; 
  document.getElementById("contactlayer").style.display = "none"; 
//   document.getElementById("biography").style.visibility = "collapse"; 
  document.getElementById(layer).style.display = "block"; 
  if (layer == "gallery") { 
    document.getElementById("gallery_cover").style.display = "block";
  } else { 
    document.getElementById("gallery_cover").style.display = "none";
  } // end turning on and off the shield. 
  
}