var Is_Compatible = false;
var Images_Hi = new Array();
var Images_Lo = new Array();
var Default_Button = "";
var Relative_Path = "";

function CurrencyPopup( QueryString )
    {
    CurrencyWindow = window.open ('', 'CurrencyWindow', 'toolbar=0, location=0, directories=0, status=0, menubar=0, scrollbars=0, resizable=1, height=170, width=600' );
    CurrencyWindow.focus();
    CurrencyWindow.location.href = 'http://currency.xe.net/ecc/input.cgi?Template=sw&'+QueryString;
    }

function LoadAll()
    {
    CheckCompatibility();
    if (Is_Compatible)
        {
        PreLoad('Welcome');
        PreLoad('News');
        PreLoad('Mailing_List');
        PreLoad('Feedback');
        PreLoad('Forums');
        PreLoad('Site_Info');
        }
    }

function SetRelativePath( path )
    {
    Relative_Path=path;
    }

function SetDefault( name )
    {
    Default_Button = name;
    document.images[name].src = Images_Hi[name].src;
    }

function CheckCompatibility()
    {
    var name = navigator.appName;
    var version = parseFloat(navigator.appVersion);
    if ((name == 'Netscape' && version >= 3) ||
        (name == 'Microsoft Internet Explorer' && version >= 4))
         Is_Compatible = true;
    else
        Is_Compatible = false;
    return true;
    }

function PreLoad( image_name )
    {
    Images_Hi[image_name] = new Image();
    Images_Hi[image_name].src = Relative_Path+"Images/"+image_name+"_Hi.gif";
    Images_Lo[image_name] = new Image();
    Images_Lo[image_name].src = Relative_Path+"Images/"+image_name+"_Lo.gif";
    return true;
    }

function HiButton( button_name )
    {
    if (Is_Compatible)
        {
        if (Default_Button != "" && button_name != Default_Button)
            document.images[Default_Button].src = Images_Lo[Default_Button].src;
        document.images[button_name].src = Images_Hi[button_name].src;
        }
    return true;
    }

function LoButton( button_name )
    {
    if (Is_Compatible)
        document.images[button_name].src = Images_Lo[button_name].src;
    return true;
    }