function openWin(url, w, h) {
    windowTreatment = "toolbar=0,location=0,directories=0,status=0,menubar=0,width="+w+",height="+h;
    childwindow = window.open(url, 'child', windowTreatment);
    childwindow.focus();
}

function swapImage(name) {
    document.images[name].src = "/images/"+name+"_on.jpg";
}

function swapImageBack(name) {
    document.images[name].src = "/images/"+name+"_off.jpg";
}