Style i php

Følgende script viser besøgende på et website:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>Website stats for domain.dk:</title>
<link href="/logging/popupstats.css" rel="stylesheet" type="text/css">
</head>

<body>
<table width="350" border="0" cellpadding="0" align="center" style="height:300px;">
  <tr>
    <td><?php
require("var/access.php");
$totalvisits  = $access["stat"]["totalvisits"];
$totalcount    = $access["stat"]["totalcount"];
$visitorsmonth = $access["time"]["month"][date("n")-1];
$visitorstoday = $access["time"]["wday"][date("w")];
$wday          = $access["time"]["wday"];

for($week = 0; list(,$wdays) = each($wday); $week += $wdays);

echo ""." ".date ("l")." ".date ("d F Y")." ".date ("G:i:s")." ".date ("T")//." GMT ".date("O")

    ."<br /><br />\n"

    ."<table width=\"290\" border=\"0\" cellpadding=\"1\" cellspacing=\"0\" align=\"center\">\n"

    ."<tr><td><strong>Webstats for domain.dk</strong></td><td align=\"left\">\n"
    ."<br /><br />\n"
    ."<tr style=\"background-color: #d1daf4\"><td>Antal hits:&nbsp;</td><td align=\"left\">\n"
    ."<div align=\"right\">$totalvisits</div></td></tr>\n"

    ."<tr><td>Antal unikke besøg:&nbsp;</td><td align=\"left\">\n"
    ."<div align=\"right\">$totalcount</div></td></tr>\n"

    ."<tr style=\"background-color: #d1daf4\"><td>Besøg denne måned:&nbsp;</td><td align=\"left\">\n"
    ."<div align=\"right\">$visitorsmonth</div></td></tr>\n"

    ."<tr><td>Besøg denne uge:&nbsp;</td><td align=\"left\">\n"
    ."<div align=\"right\">$week</div></td></tr>\n"

    ."<tr style=\"background-color: #d1daf4\"><td>Besøg i dag:&nbsp;</td><td align=\"left\">\n"
    ."<div align=\"right\">$visitorstoday</div></td></tr>\n"

    ."</table>\n";
?></td>
  </tr>
  <tr>
    <td height="20" valign="bottom" style="text-align:center;"><input name="button" type="button" onClick="window.close()" value="Luk vindue" class="submit_knap"></td>
  </tr>
</table>
</body>
</html>

Hvordan får jeg centreret datoenlinien her: echo ""." ".date ("l")." ".date ("d F Y")." ".date ("G:i:s")." ".date ("T")//." GMT ".date("O") - så den vises "center".

Mvh.