PHP calendar with clickable dates _not working

[sivarts]

Hello fellow freaks-

I have built the calendar using the following tutorial on the Dreamweaver developer site: Building a Blog with DW, PHP and MySQL Part three:Creating a search feature and archiving your blog.

I built the claendar and it works fine, but the dates that have records (taken from a recordset and dumped into an array) do not become links as they should. I have been racking my brains over this for too long now and I just can't figure it out. Plus two of my variable are not set which gives me two errors.

Heres the code for the function:

<?php
function build_calendar($month,$year,$day) {
/* Declaring the variables */
$daysOfWeek = array('Su','Mo','Tu','We','Th','Fr','Sa');
$firstDayOfMonth = mktime(0,0,0,$month,1,$year);
$noDays = date('t',$firstDayOfMonth);
$dateComponents = getdate($firstDayOfMonth);
$dayOfWeek = $dateComponents['wday'];
$monthName = date('F',mktime(0,0,0,$month,1,$year));

global $rsArticleDates;
global $_GET;

if (mysql_num_rows($rsArticleDates) > 0){
mysql_data_seek($rsArticleDates,0);
while($row_rsArticleDates = mysql_fetch_assoc($rsArticleDates)){
[b]$dates[][/b] = $row_rsArticleDates['ArticleDate'];
}
}

/* Computing the previous month. */
if($month == 1) {
$mn=12;
$yn=$year-1;
} else {
$mn=$month-1;
$yn=$year;
}

/* Computing the next month. */
if($month == 12) {
$mn2=1;
$yn2=$year+1;
} else {
$mn2=$month+1;
$yn2=$year;
}

/* Calendar header: next and previous month links */
$calendar = "<table>";
$calendar .= "<tr><td><a href=day.php?m=$mn&y=$yn&d=$day>&lt;</a></td>";
$calendar .="<td colspan=5 align=center>$monthName, $year</td>";
$calendar .="<td><a href=day.php?m=$mn2&y=$yn2&d=$day>&gt;</a></td></tr>";
$calendar .="<tr>";

/* Calendar header: Display the days of the week */
foreach($daysOfWeek as $day) {
          $calendar .= "<td>$day</td>";
}
$calendar .= "</tr>";
$calendar .= "<tr>";

  $currentDay = 1;


  /* Fill in the beginning of the calendar body */   
  if ($dayOfWeek > 0) { 
    $calendar .= "<td  colspan='$dayOfWeek'>&nbsp;</td>"; 
  }

  /* Generate the calendar body */
  while ($currentDay <= $noDays) {
        if ($dayOfWeek == 7) {
              $dayOfWeek = 0;
              $calendar .= "</tr><tr>";
        }
[b]$date = [/b]$year."-".$month."-".$currentDay;
if (in_array($date,$dates)) {
$calendar .= "<td><a href='day.php?m=$month&y=$year&d=$currentDay'>$currentDay</a></td>";
} else {
$calendar .= "<td>$currentDay</td>";
}
  $currentDay++;
  $dayOfWeek++;
  }

/* Filling in the end of the calendar body */
if ($dayOfWeek != 7) { 
          $remainingDays = 7 - $dayOfWeek;
          $calendar .= "<td colspan='$remainingDays'>&nbsp;</td>"; 
}
 
  $calendar .= "</table>";
return $calendar;
}
if (isset($_GET['m']) && isset($_GET['y']) && isset($_GET['d'])){
$month = $_GET['m'];
$year = $_GET['y'];
$day = $_GET['d'];
} else {
$dateComponents = getdate();
$month = $dateComponents['mon'];
$year = $dateComponents['year'];
$day = $dateComponents['mday'];
}

echo build_calendar($month,$year,$day);

?>

The two variables on BOLD are the errors (undefined variable). Has anyone done this tut or know what is wrong with the code? I know my recordset is giving valid results (I have tested it).
Any help would be much appreciated!!!