good_machine = false;
if( parseInt( navigator.appVersion ) >= 3 ) { good_machine = true; }
if ( good_machine )
{
button_home_on = new Image;
button_home_on.src= "../images/home_on.jpg";
button_home_off = new Image;
button_home_off.src = "../images/home.jpg";

button_whoami_on = new Image;
button_whoami_on.src= "../images/whoami_on.jpg";
button_whoami_off = new Image;
button_whoami_off.src = "../images/whoami.jpg";

button_writing_on = new Image;
button_writing_on.src= "../images/writing_on.jpg";
button_writing_off = new Image;
button_writing_off.src = "../images/writing.jpg";

button_web_on = new Image;
button_web_on.src= "../images/web_on.jpg";
button_web_off = new Image;
button_web_off.src = "../images/web.jpg";

button_math_on = new Image;
button_math_on.src= "../images/math_on.jpg";
button_math_off = new Image;
button_math_off.src = "../images/math.jpg";

button_links_on = new Image;
button_links_on.src= "../images/links_on.jpg";
button_links_off = new Image;
button_links_off.src = "../images/links.jpg";

button_email_on = new Image;
button_email_on.src= "../images/email_on.jpg";
button_email_off = new Image;
button_email_off.src = "../images/email.jpg";
}

function glow(x, y)
{
  if ( good_machine )
  {
    document.images[x].src=eval(y+'.src');
  }
}