function loader(){
    addressBook.loader = document.createElement( 'div' );
    addressBook.loader.setAttribute( 'id', 'loading' );
    addressBook.loader.style.position   = 'absolute';
    addressBook.loader.style.top        = '50%';
    addressBook.loader.style.left       = '50%';
    addressBook.loader.style.width      = '300px';
    addressBook.loader.style.lineHeight = '100px';
    addressBook.loader.style.margin     = '-50px 0 0 -150px';
    addressBook.loader.style.textAlign  = 'center';
    addressBook.loader.style.border     = '1px solid #870108';
    addressBook.loader.style.background = '#fff';
    addressBook.loader.appendChild( document.createTextNode( 'Loading Data, please wait\u2026' ) );
    addressBook.body.appendChild( addressBook.loader );
  },
    function killLoader(){
    addressBook.body.removeChild( addressBook.loader );
  }