var PTYLTD = 1;
var INTERNET = 2;

var currenthome = PTYLTD;

function gohome()
{
    if ( currenthome == PTYLTD )
        corporate();
    else
        internet();
}

function corporate()
{
    if (parent.main.location.pathname != "/home.php")
        parent.main.document.location = '/home.php';
    currenthome = PTYLTD;
    ptyltdrollout(document.images["ptyltd"]);
    internetrollout(document.images["internet"]);
}

function internet()
{
    if (parent.main.location.pathname != "/internet.php")
        parent.main.document.location = '/internet.php';
    currenthome = INTERNET;
    ptyltdrollout(document.images["ptyltd"]);
    internetrollout(document.images["internet"]);
}

function ptyltdrollover(img)
{
    var active = "";

    if ( currenthome == PTYLTD )
        active = "active-";

    img.src = 'images/tabs/' + active + 'voice_pty_ltd-on.gif';
}

function ptyltdrollout(img)
{
    var active = "";

    if ( currenthome == PTYLTD )
        active = "active-";

    img.src = 'images/tabs/' + active + 'voice_pty_ltd-off.gif';
}

function internetrollover(img)
{
    var active = "";

    if ( currenthome == INTERNET )
        active = "active-";

    img.src = 'images/tabs/' + active + 'voice_internet-on.gif';
}

function internetrollout(img)
{
    var active = "";

    if ( currenthome == INTERNET )
        active = "active-";

    img.src = 'images/tabs/' + active + 'voice_internet-off.gif';
}