function popWindow( url, width, height, windowName )
{
    //get center coords
    var left = (screen.width - width) / 2;
    var top = (screen.height - height) / 2;
    
    win=window.open(url, windowName, 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=' + width + ',height=' + height + ',left=' + left + ',top=' + top);
}
function popScrollingWindow(url, width, height, windowName)
{
    //get center coords
    var left = (screen.width - width) / 2;
    var top = (screen.height - height) / 2;
    
    win=window.open(url, windowName, 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0,width=' + width + ',height=' + height + ',left=' + left + ',top=' + top);
}
function openWindow(url)
{
    var rand = "_blank";
    win=window.open(url,rand,"directories=yes,location=yes,menubar=yes,scrollbars=yes,status=yes,toolbar=yes,resizable=yes");
}

function popMPAA()
{
    openWindow("http://www.mpaa.org");
}
function popFilmRatings()
{
    openWindow("http://www.filmratings.com");
}
function popParentalGuide()
{
    openWindow("http://www.parentalguide.org");
}

function popMGMHome()
{
    openWindow("http://www.mgm.com/home.do");
}
function popHelpContact()
{
    openWindow("http://www.mgm.com/help.do");
}
function popPrivacyPolicy()
{
    openWindow("http://www.mgm.com/private_policy.do");
}
function popTermsOfUse()
{
    openWindow("http://www.mgm.com/terms_of_use.do");
}

function popNewsletter()
{
    openWindow("http://www.mgm.com/newsletter.do?sourceid=2157");
}

function popSendEncodedMessage()
{
    popWindow("http://www.mgm.com/futuresecretagent/talker.cgi", 500, 300, "encoded_message");
}

function popTrainingVideo()
{
    popWindow("clips/trailer.html", 500, 398, "training_video");
}