function open_win(pageurl)
{
    open_win_size(pageurl, 400, 150)
}
function open_win_size(pageurl, width, height)
{
    window.open(pageurl,"_blank","toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=no, copyhistory=yes, width="+width+", height="+height);
}