starsourceon = "images/star_on.jpg";
starsourceoff = "images/star_off.jpg";
textsourceon = "images/text_on.jpg";
textsourceoff = "images/text_off.jpg";
navsourceon = "images/nav_on2.jpg";
navsourceoff = "images/nav_off.gif";
pstarsourceon = "images/pster_on.jpg";
pstarsourceoff = "images/pster_off.jpg";

function imgOn() {
document['flstar'].src = starsourceon;
document['text'].src = textsourceon;
}

function imgOff() {
document['flstar'].src = starsourceoff;
document['text'].src = textsourceoff;
}

function pstarOn(nr) {
document[nr].src = pstarsourceon;
}

function pstarOff(nr) {
document[nr].src = pstarsourceoff;
}

function navOn(nr) {
document[nr].src = navsourceon;
document[nr].width = 18;
document[nr].height = 18;
}

function navOff(nr) {
document[nr].src = navsourceoff;
document[nr].width = 1;
document[nr].height = 1;
}