function showCover(address)
{
    popup(address, "cover");
}

function showInterview(address)
{
    popup(address, "interview", 700);
}

function showMember(address)
{
    popup(address, "member", 670);
}

function showReview(address)
{
    popup(address, "review", 670);
}

function popup(address, windowName, windowWidth)
{
    var _width = windowWidth;
    var _height = screen.availHeight * 0.75;
    var _top = (screen.availHeight - _height) / 2;
    
    if(navigator.userAgent.indexOf("Opera") > -1)
        _top = _top - 80;
        
    var _left = (screen.availWidth - _width) / 2;
    var newWindow = window.open(address, windowName, 'top=' + _top + ',left=' + _left + ',height=' + _height + ',width=' + _width + ',status=no,scrollbars=yes,resizable=no,location=no');
    newWindow.focus();
}