if (document.images) {
    as_btnup1on = new Image();
    as_btnup1on.src = "images/button_up.jpg";
    as_btnup1off = new Image();
    as_btnup1off.src = "images/button_dn.jpg";
    as_btnup2on = new Image();
    as_btnup2on.src = as_btnup1on.src;
    as_btnup2off = new Image();
    as_btnup2off.src = as_btnup1off.src;
    as_btnup3on = new Image();
    as_btnup3on.src = as_btnup1on.src;
    as_btnup3off = new Image();
    as_btnup3off.src = as_btnup1off.src;
    as_btnup4on = new Image();
    as_btnup4on.src = as_btnup1on.src;
    as_btnup4off = new Image();
    as_btnup4off.src = as_btnup1off.src;
    as_btnup5on = new Image();
    as_btnup5on.src = as_btnup1on.src;
    as_btnup5off = new Image();
    as_btnup5off.src = as_btnup1off.src;
    as_btnup6on = new Image();
    as_btnup6on.src = as_btnup1on.src;
    as_btnup6off = new Image();
    as_btnup6off.src = as_btnup1off.src;
    as_btnup7on = new Image();
    as_btnup7on.src = as_btnup1on.src;
    as_btnup7off = new Image();
    as_btnup7off.src = as_btnup1off.src;
}
function img_act(imgName) {
    if (document.images) {
        imgOn = eval(imgName + "on.src");
        document[imgName].src = imgOn;
    }
}
function img_inact(imgName) {
    if (document.images) {
        imgOff = eval(imgName + "off.src");
        document[imgName].src = imgOff;
    }
}

function openPlayer(url) {
    window.open(url, null, "width=800,height=780,resizable=no,status=no,scrollbars=no,menubar=no,toolbar=no,titlebar=no,location=no, top=50")
}