function popupMare(mylink, windowname)
{
    if (! window.focus)
        return true;
    var href;
    if (typeof(mylink) == 'string')
        href=mylink;
    else
        href=mylink.href;
    window.open(href, windowname, 'width=500,height=650,menubar=no,scrollbars=yes,resizable=no');
    return false;
}