How to show next/previous month in calendar below ?

[chrisdee]

<?
echo "<table border=1>"; 
echo "<tr><td colspan=8 align=center bgcolor=lightgreen>".date("F Y")."</td></tr>"; 
echo "<tr><td bgcolor=lightgreen>week</td>"; 

$weekdays = array("Mon","Tue","Wed","Thu","Fri","Sat","Sun"); 
foreach ($weekdays as $weekday) {
echo "<td bgcolor=lightblue>$weekday</td>";
}

echo "<tr><td bgcolor=lightgrey>".date("W",mktime(0,0,0,date("m"),0))."</td>";

for ($day = 0; $day < date("w",mktime(0,0,0,date("m"),0)); $day++) {
echo "<td>&nbsp<!--Empty Cells--></td>"; 
}

for ($dim = 1; $dim <= date('t'); $dim++) {
$timestamp = strtotime(date("Y-m-".$dim));
$day = date("w", $timestamp);

if ($day==1) {
echo "</tr><tr><td bgcolor=lightgrey>".date("W", $timestamp)."</td>";
}

if ($dim == date("d")) {
print "<td bgcolor=lightblue>$dim</td>";
}

elseif ($day == 0 or $day == 6) {
echo "<td><font color=red>$dim</font></td>";
}

else {
echo "<td>$dim</td>"; 
}
}

echo "</tr></table>";
?>

[Installer]

if (isset($_GET['prev'])) {
    $active_ts = strtotime('-1 month', $_GET['prev']);
} elseif (isset($_GET['next'])) {
    $active_ts = strtotime('+1 month', $_GET['next']);
} else {
    $active_ts = strtotime('today');
}
echo "<table border=1>";  

echo "<tr>";
echo '<td><a href="' . $_SERVER['PHP_SELF'] . '?prev=' . $active_ts . '">&lt;</a></td>';
echo "<td colspan=6 align=center bgcolor=lightgreen>".date("F Y", $active_ts)."</td>";  

echo '<td><a href="' . $_SERVER['PHP_SELF'] . '?next=' . $active_ts . '">&gt;</a></td></tr>';
echo "<tr><td bgcolor=lightgreen>week</td>";  

$weekdays = array("Mon","Tue","Wed","Thu","Fri","Sat","Sun");  

foreach ($weekdays as $weekday) { 
echo "<td bgcolor=lightblue>$weekday</td>"; 
} 

echo "<tr><td bgcolor=lightgrey>".date("W",mktime(0,0,0,date("m", $active_ts),0))."</td>"; 

for ($day = 0; $day < date("w",mktime(0,0,0,date("m", $active_ts),0)); $day++) { 
echo "<td>&nbsp<!--Empty Cells--></td>";  

} 

for ($dim = 1; $dim <= date('t', $active_ts); $dim++) { 
$timestamp = strtotime(date("Y-m-".$dim, $active_ts)); 
$day = date("w", $timestamp); 

if ($day==1) { 
echo "</tr><tr><td bgcolor=lightgrey>".date("W", $timestamp)."</td>"; 
} 

if ($dim == date("d", $active_ts)) { 
print "<td bgcolor=lightblue>$dim</td>"; 
} 

elseif ($day == 0 or $day == 6) { 
echo "<td><font color=red>$dim</font></td>"; 
} 

else { 
echo "<td>$dim</td>";  

} 
} 

echo "</tr></table>"; 

[chrisdee]

Excellent, it works very well.
Thank you Installer.