function NewWindow()
{
    url = 'http://www.gfap.com.au/link/'
    if ((screen.Height >= 0) && (screen.Width >= 0))
    {
        var height = screen.Height - 75;
        var width = screen.Width - 10;
    }
    else if ((screen.availHeight >= 0) && (screen.availWidth >= 0))
    {
        var height = screen.availHeight - 45;
        var width = screen.availWidth - 10;
    }

    newWin = window.open(url, "SAL", 
    "toolbar=0,status=1,location=no,menubar=no,directories=no,scrollbars=yes,resizable=yes,screenX=0,screen=0,left=0,top=0,width=" 
    + width + ",height=" + height);
}