function show(foo, f, section) {
    document.getElementById(foo).style.display = "block";
}

function hide(foo, f, section) {
    if (document.getElementById(foo)) {
        document.getElementById(foo).style.display = "none";
    }
}

function flipWithSign(foo) {
    if (document.getElementById(foo).style.display == "none") {
        show(foo); collapseSign(foo);
    }
    else {
        hide(foo); expandSign(foo);
    }
}

function expandSign(foo) {
    document.getElementById(foo + "_sign").src = "/oem/publishingimages/plus1.gif";
}

function collapseSign(foo) {
    document.getElementById(foo + "_sign").src = "/oem/publishingimages/minus.gif";
}