function writeEmail(prefix, suffix) {
    var address;
    if (suffix != null) address = prefix + '@' + suffix;
    else address = prefix + '@astro.umn.edu';
    document.write('<span class="contact">(<a href="mailto:' + address + '">e-mail</a>)</span>');
    return true;
}

function writeEmail2(prefix, suffix) {
    var address;
    if (suffix != null)	address = prefix + '@' + suffix;
    else address = prefix + '@astro.umn.edu';
    document.write('<a href="mailto:' + address + '">' + address + '</a>');
    return true;
}

function writeWebEmail(prefix, webaddy) {
    var eaddress = prefix + '@astro.umn.edu';
    var waddress;
    if (webaddy != null) waddress = webaddy;
    else waddress = '/~' + prefix + '/';
    document.write('<span class="contact">(<a href="mailto:' + eaddress +
		   '">e-mail</a>, <a href="' + waddress + '">web</a>)</span>');
    return true;
}

function writeEmailInTable(prefix, suffix) {
    var address;
    if (suffix != null) address = prefix + '@' + suffix;
    else address = prefix + '@astro.umn.edu';
    document.write('<td><a href="mailto:' + address + '">e-mail</a></td><td>');
    return true;
}

function writeWebEmailInTable(prefix, webaddy) {
    var eaddress = prefix + '@astro.umn.edu';
    var waddress;
    if (webaddy != null) waddress = webaddy;
    else waddress = 'http://webusers.astro.umn.edu/~' + prefix + '/';
    document.write('<td><a href="mailto:' + eaddress +
		   '">e-mail</a></td><td><a href="' + waddress + '">web</a>');
    return true;
}

function writeWebEmailInTable2(prefix, suffix, webaddy) {
    var eaddress = prefix + '@' + suffix;
    var waddress;
    if (webaddy != null) waddress = webaddy;
    else waddress = 'http://webusers.astro.umn.edu/~' + prefix + '/';
    document.write('<td><a href="mailto:' + eaddress +
		   '">e-mail</a></td><td><a href="' + waddress + '">web</a>');
    return true;
}