fValidVer =
  (((navigator.appName == "Netscape") &&
  (parseInt(navigator.appVersion) >= 3 )) ||
  ((navigator.appName == "Microsoft Internet Explorer") &&
  (parseInt(navigator.appVersion) >= 4 )));

if (document.images)
{
    var home_normal = new Image;
    home_normal.src = "buttons/home_normal_button.gif";

    var home_hover = new Image;
    home_hover.src = "buttons/home_hover_button.gif";

    var home_click = new Image;
    home_click.src = "buttons/home_click_button.gif";

    var ptroon_normal = new Image;
    ptroon_normal.src = "buttons/ptroon_normal_button.gif";

    var ptroon_hover = new Image;
    ptroon_hover.src = "buttons/ptroon_hover_button.gif";

    var ptroon_click = new Image;
    ptroon_click.src = "buttons/ptroon_click_button.gif";

    var euronet_normal = new Image;
    euronet_normal.src = "buttons/euronet_normal_button.gif";

    var euronet_hover = new Image;
    euronet_hover.src = "buttons/euronet_hover_button.gif";

    var euronet_click = new Image;
    euronet_click.src = "buttons/euronet_click_button.gif";

    var firstpage_normal = new Image;
    firstpage_normal.src = "buttons/firstpage_normal_button.gif";

    var firstpage_hover = new Image;
    firstpage_hover.src = "buttons/firstpage_hover_button.gif";

    var firstpage_click = new Image;
    firstpage_click.src = "buttons/firstpage_click_button.gif";

    var secondpage_normal = new Image;
    secondpage_normal.src = "buttons/secondpage_normal_button.gif";

    var secondpage_hover = new Image;
    secondpage_hover.src = "buttons/secondpage_hover_button.gif";

    var secondpage_click = new Image;
    secondpage_click.src = "buttons/secondpage_click_button.gif";

    var topten_normal = new Image;
    topten_normal.src = "buttons/topten_normal_button.gif";

    var topten_hover = new Image;
    topten_hover.src = "buttons/topten_hover_button.gif";

    var topten_click = new Image;
    topten_click.src = "buttons/topten_click_button.gif";

    var music_normal = new Image;
    music_normal.src = "buttons/music_normal_button.gif";

    var music_hover = new Image;
    music_hover.src = "buttons/music_hover_button.gif";

    var music_click = new Image;
    music_click.src = "buttons/music_click_button.gif";

    var suriname_normal = new Image;
    suriname_normal.src = "buttons/suriname_normal_button.gif";

    var suriname_hover = new Image;
    suriname_hover.src = "buttons/suriname_hover_button.gif";

    var suriname_click = new Image;
    suriname_click.src = "buttons/suriname_click_button.gif";

    var surilinks_normal = new Image;
    surilinks_normal.src = "buttons/surilinks_normal_button.gif";

    var surilinks_hover = new Image;
    surilinks_hover.src = "buttons/surilinks_hover_button.gif";

    var surilinks_click = new Image;
    surilinks_click.src = "buttons/surilinks_click_button.gif";

    var domains_normal = new Image;
    domains_normal.src = "buttons/domains_normal_button.gif";

    var domains_hover = new Image;
    domains_hover.src = "buttons/domains_hover_button.gif";

    var domains_click = new Image;
    domains_click.src = "buttons/domains_click_button.gif";

    var survey_normal = new Image;
    survey_normal.src = "buttons/survey_normal_button.gif";

    var survey_hover = new Image;
    survey_hover.src = "buttons/survey_hover_button.gif";

    var survey_click = new Image;
    survey_click.src = "buttons/survey_click_button.gif";

    var index_normal = new Image;
    index_normal.src = "buttons/index_normal_button.gif";

    var index_hover = new Image;
    index_hover.src = "buttons/index_hover_button.gif";

    var index_click = new Image;
    index_click.src = "buttons/index_click_button.gif";

}

function Swap(image1, image2)
{
  if (document.images)
    document.images[image1].src = eval(image2 + ".src");
}