var nav_links = new Array( 'home', 'vets', 'services', 'staff', 'location', 'newsletter', 'pet_care', 'exotic_pets', 'new_clients', 'links', 'pharmacy' );


var rollover_states = new Array( "on", "off" );

// Preload navbar link images 

for ( nav_link in nav_links ) {

  for ( rollover_state in rollover_states ) {

    window[ ( "nav_link_" + nav_links[ nav_link ] + "_" + rollover_states[ rollover_state ] ) ] = new Image();

    window[ ( "nav_link_" + nav_links[ nav_link ] + "_" + rollover_states[ rollover_state ] ) ].src = "/inside/images/layout/navbar/" + nav_links[ nav_link ] + "_" + rollover_states[ rollover_state ] + ".gif";

  }
  // end for

}
// end for


function nav_roll( nav_link_name, new_rollover_state ) {

  if ( window.site_section_ID == void(0) ) {
  
    window.site_section_ID = "NULL";
  
  }
  // end if
  
  if ( window.site_section_ID.toLowerCase() == nav_link_name.toLowerCase() ) {
  
    return;
  
  }
  // end if

  new_rollover_state = new_rollover_state.toLowerCase();

  // Rollover the navbar link image
  if ( ( document.images[ "nav_link_" + nav_link_name ] != void(0) ) && ( window[ "nav_link_" + nav_link_name + "_" + new_rollover_state ] != void(0) ) ) {
 
    document.images[ "nav_link_" + nav_link_name ].src = window[ "nav_link_" + nav_link_name + "_" + new_rollover_state ].src;
  
  }
  // end if

  return;

}
// end nav_roll