Calendar Code

[sayray]

I picked up this script quite a while ago. It is a simple calendar script. It works really good except for the month of December. Can anyone see why the day is off on the month of December.

I appreciate your time.
Thanks

	if($calendar_size == "small")
	{
		$WeekDayArray = array("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
	} else  {
		$WeekDayArray = array("Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday");
	}
	//check for the requested month, if none default to current
	if(!isset($_GET["month"])){
		$intMonth = Date("n");
	} else {
		$intMonth = $_GET["month"];
	}
	//check for the requested year, if none default to current
	if(!isset($_GET["year"]))
	{
		$intYear = Date("Y");
	} else {
		$intYear = $_GET["year"];
	}

$dtmTemp = 0;
$intDays = 0;
$intWeekDay = 0;
$intOffset = 0;

$dtmTemp = Date("m-d-Y",mktime(0,0,0,$intMonth % 12 + 1, 1, $intYear,-1));
$intDays = Date("t",mktime(0,0,0,$intMonth % 12 , 1, $intYear));
$intWeekDay = Date("w", mktime(0,0,0,$intMonth %12, 1, $intYear,-1)) + 1;
$intOffset = Date("w", mktime(0,0,0,$intMonth %12 , 1, $intYear,-1));

?>

<table border='1' cellpadding='5' cellspacing='0' bgcolor="#cccccc">
<tr>
<td align='left' valign="top">

	<table width='100%' border='0' cellpadding='5' cellspacing='0'>
	<tr>
	<td align='left'>
		<a href='<?=$_SERVER['PHP_SELF']?>?month=<?php echo ($intMonth+10)%12+1 ?>&year=<?php echo (($intMonth+10)%12+1 == 12 ? $intYear-1:$intYear) ?>'>PREV</a>
		&nbsp;
		<a href='<?=$_SERVER['PHP_SELF']?>?month=<?php echo $intMonth%12+1 ?>&year=<?php echo ($intMonth%12+1 == 1 ? $intYear+1:$intYear) ?>'>NEXT</a>
	</td>
	<td align='right'>
		<?php 
			echo "<font face='Arial' size='2' color='#000033'>";
			echo Date("F", mktime(0,0,0,$intMonth % 12, 1, $intYear,-1))." &nbsp; $intYear";
			echo "</font>";
			echo "&nbsp;";
		?>
	</td>
	</tr>
	</table>

</td>
</tr>

<tr>
<td width='100%' height='100%' valign='top' >
<table align='left' width='100%' cellspacing='0' cellpadding='5' border="1" bgcolor="#ffffff">

<?php

	for($i=0;$i < 7;$i++)
	{
		print "<td align='center' width='$cell_width'>";
		print $WeekDayArray[$i];
		print "</td>";
	}

?>
	</tr>
<?php


	//$intEnd is the number of boxes we need to print to reach the end of the month
	$intEnd = $intWeekDay + $intDays;

	//We use 42 here cause a month can at most span 6 weeks.
	for($x = 1;$x<=42;$x++)
	{
		//This gives us the number of the day of the month
		$intCurrentDay = $x - $intOffset ;

		//Mod by 7 to separate the weeks
		if( $x%7 == 1)
		{
			print"<tr height='$cell_height'>";
		}

		//if we're within the current month print a box with the day, else print a gray box		
		if( $x >= $intWeekDay && $x < $intEnd)
		{
			print"<td valign='top'>";
			echo "&nbsp;".$intCurrentDay."<br>";

			print"</td>";
		} else  {
			print "<td valign='top'>&nbsp;</td>";
		}

		if( $x%7 == 0){
			print"</tr>";
		}
	}

print"
</table>

</td>
</tr>
</table>
";