function buildAlphaLinks() {
  if( !document.getElementById || !document.getElementsByTagName ) { 
    return false 
  };
  var alphaNav = document.getElementById( 'alphaNav' );
  var allLinks = alphaNav.getElementsByTagName( 'a' );
  for ( var i=0; i<allLinks.length; i++ ) {   
    allLinks[i].onclick = function() {
      toggleAlphaLinks( this );  
      return false;      
    }
  } 
  allLinks[0].onclick(); 
}

function toggleAlphaLinks( activateLink ) {            
  var alphaNav = document.getElementById( 'alphaNav' );
  var allLinks = alphaNav.getElementsByTagName( 'a' );               
  var idToToggle = activateLink.href.split( '#' )[1];    
  for ( var i=0; i<allLinks.length; i++ ) {
    var id = allLinks[i].href.split( '#' )[1];
    if ( idToToggle == id ) {
      var el = document.getElementById( id );
      el.style.display = "block"; 
      allLinks[i].className = "selected";
    }
    else {
      var el = document.getElementById( id );
      el.style.display = "none";
      allLinks[i].className = "";
    }        
  }
}

bbcjs.addOnLoadItem(function() {
  buildAlphaLinks();  
});