Problem med include()

Hej,

Jeg har to filer, hvor den ene inkluderer den anden. Det synes bare ikke rigtigt at virke. Jeg får følgende fejl:

Fatal error: Cannot instantiate non-existent class: date_pulldown in D:\Apache Group\Apache2\htdocs\listing12.4.php on line 6

Den fil der skal inkluderes, er følgende:

class date_pulldown {
    var $name;
    var $timestamp = -1;
    var $months = array("Jan", "Feb", "Mar", "Maj", "Jun", "Jul", "Aug", "Sep", "Okt",

"Nov", "Dec");
    var $yearstart = -1;
    var $yearend = -1;

function date_pulldown($name)
{
    $this->name = $name;
}

function setDate_global()
{
    if (!$this->setDate_array($GLOBALS[$this->name]))
    {
        return $this->setDate_timestamp(time());
    }

    return true;
}

function setDate_timestamp($time)
{
    $this->timestamp = $time;
    return true;
}

function setDate_array($inputdate)
{
    if (is_array($inputdate) && isset($inputdate['mon']) && isset($inputdate['mday']) &&

isset($inputdate['year']))
    {
        $this->timestamp = mktime(11, 59, 59, $inputdate['mon'], $inputdate['mday'],

$inputdate['year']);

        return true;
    }

    return false;
}

function setYearStart($year)
{
    $this->yearstart = $year;
}

function setYearEnd($year)
{
    $this->yearend = $year;
}

function getYearStart ()
{
    if ($this->yearstart < 0)
    {
        $nowarray = getdate(time());
        $this->yearstart = $nowarray[year]-5;
    }

    return $this->yearstart;
}

function getYearEnd()
{
    if ($this->yearend < 0)
    {
        $nowarray = getdate(time());
        $this->yearend = $nowarray[year]+5;
    }

    return $this->yearend;
}

function output()
{
    if ($this->timestamp < 0)
    {
        $this->setDate_global();
    }

    $datearray = getdate($this->timestamp);
    $out = $this->day_select($this->name, $datearray);
    $out .= $this->month_select($this->name, $datearray);
    $out .= $this->year_select($this->name, $datearray);
    return $out;
}

function day_select($fieldname, $datearray)
{
    $out = "<select name=\"$fieldname"."[mday]\">\n";

    for ($x=1; $x<=31; $x++)
    {
        $out .= "<option value=\"$x\"".($datearray['mday']==($x) ?"

SELECTED":"").">".sprintf("%02d", $x ) ."\n";
    }

    $out .= "</select>\n";
    return $out;
}

function month_select($fieldname, $datearray)
{
    $out = "<select name=\"" . $fieldname . "[mon]\">\n";

    for ($x = 1; $x <= 12; $x++)
    {
        $out .= "<option value=\"".($x)."\"".($datearray['mon']==($x) ?" SELECTED":"").">

".$this->months[$x-1]."\n";
    }

    $out .= "</select>\n";
    return $out;
}

function year_select($fieldname, $datearray)
{
    $out = "<select name=\"$fieldname"."[year]\">";
    $start = $this->getYearStart();
    $end = $this->getYearEnd();


    for ($x = $start; $x <= $end; $x++)
    {
    $out .= "<option value=\"".($x)."\"".($datearray['year']==($x) ?"

SELECTED":"").">$x\n";
    }

    $out .= "</select>\n";
    return $out;
}

}

Den fil der vil inkludere ovenstående, er:

<html>
<head>
    <title>Listing 12.4 Using the date_pulldown Class</title>
</head>
<?php
$date1 = new date_pulldown("fromdate"); <- Linje 6
$date2 = new date_pulldown("todate");
$date3 = new date_pulldown("foundingdate");
$date3 -> setYearStart(1972);

if (empty($foundingdate))
    $date3->setDate_array(array('mday'=>26, 'mon'=>4, 'year'=>1984));
?>
<body>

<form>
From:<br>
<?php print $date1->output(); ?><p>

To:<br>
<?php print $date2->output(); ?><p>

Company founded:<br>
<?php print $date3->output(); ?><p>

<input type="submit" value="Submit Query">
</form>
</body>
</html>

Nogen der kan se problemet?

PS: Det virker fint, nar jeg par copy/paster indholdet i den fil der inkluderes, ind i den nederste fil...