if ( document.images )
{
  home_on = new Image ( );
  home_off = new Image ( );

  home_on.src = "http://www.blown-glass.net/images/home_on.gif";
  home_off.src = "http://www.blown-glass.net/images/home_off.gif";
}

{
  travel_on = new Image ( );
  travel_off = new Image ( );

  travel_on.src = "http://www.blown-glass.net/images/travel_on.gif";
  travel_off.src = "http://www.blown-glass.net/images/travel_off.gif";
}

{
  resume_on = new Image ( );
  resume_off = new Image ( );

  resume_on.src = "http://www.blown-glass.net/images/resume_on.gif";
  resume_off.src = "http://www.blown-glass.net/images/resume_off.gif";
}

{
  business_on = new Image ( );
  business_off = new Image ( );

  business_on.src = "http://www.blown-glass.net/images/business_on.gif";
  business_off.src = "http://www.blown-glass.net/images/business_off.gif";
}

{
  family_on = new Image ( );
  family_off = new Image ( );

  family_on.src = "http://www.blown-glass.net/images/family_on.gif";
  family_off.src = "http://www.blown-glass.net/images/family_off.gif";
}

{
  hobbies_on = new Image ( );
  hobbies_off = new Image ( );

  hobbies_on.src = "http://www.blown-glass.net/images/hobbies_on.gif";
  hobbies_off.src = "http://www.blown-glass.net/images/hobbies_off.gif";
}

{
  contact_on = new Image ( );
  contact_off = new Image ( );

  contact_on.src = "http://www.blown-glass.net/images/contact_on.gif";
  contact_off.src = "http://www.blown-glass.net/images/contact_off.gif";
}

function button_on ( imgName )
{
  if ( document.images )
  {
    butOn = eval ( imgName + "_on.src" );
    document[imgName].src = butOn;
  }
}

function button_off ( imgName )
{
  if ( document.images )
  {
    butOff = eval ( imgName + "_off.src" );
    document[imgName].src = butOff;
  }
}