php sayfayı pop-up ile acmak

selam degerli hocalar;

pop-up acarken hata oluyor tam kod aşagıda tumbs uzerine tıkladıgımda hata alıyorum ve show.php acılmıyor link direk yazarsam su sekilde acılıyor echo "<a href=show.php?resim=$filelist[$i]>\n";

ama boyle gonderirsem acımıyor
echo "<a href=\"javascript:popUpWindow('show.php?resim=$filelist[$i]', 50,50, 400,350);\">\n";
nerede hata yapıyorum yardım ederseniz sevinririm

salih hanifeoğlu
www.yucehan.com

Kod:

<html>
<head>
<title>İndex sayfa</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-9">
<style>
body {
background-color : #FFFFFF;
color : #000000;
font-family : Verdana, Arial, Helvetica, sans-serif;
font-size : 16px;
font-weight : bold;
text-decoration : none;
}
a, a:link {
color : #000000;
font-family : Verdana, Arial, Helvetica, sans-serif;
font-size : 9pt;
font-weight : bold;
text-decoration : none;
}
a:alink {
color : #FF0000;
}
a:hover {
color : #FF8000;
text-decoration : underline;
}
.tr{
font-family : Verdana, Arial, Helvetica, sans-serif;
font-size : 14px;
font-weight : bold;
}
.td {
font-size : 16pt;
font-weight : bold;
font-family : Courier New;
color : #FFFFFF;
background-color : #FF8000;
}
input {
font-family : Verdana;
font-size : 9pt;
font-weight : bold;
}
select {
font-size : 8pt;
font-weight : bold;
font-family : Verdana;
color : #000000;
background-color : #FFFFFF;
}
</style>
<script>
var popUpWin = 0;
function popUpWindow(, left, top, width, height)
{
if(popUpWin)
{
if(!popUpWin.closed) popUpWin.close();
}

popUpWin = open(URLStr, 'popUpWin',
'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=no,width='+width+',height='+height+',left='+left+',
top='+top+',screenX='+left+',screenY='+top+'');
}
</script>
<?php

    function utime ()
    {
        $time = explode(" ", microtime());
        $usec = (double)$time[0];
        $sec = (double)$time[1];
        return $sec + $usec;
    }
//$start = utime();
//error_reporting(0);

@require_once 'config.inc.php';

if(is_dir($thumb_path)) {
    $dir = opendir($thumb_path);

} else {
    exit('Küçük Resim Klasörünü Bulamadym!Klasör Yok yada Gerekli izinler
Verilmemiş.');
}

while(($file = readdir($dir)) !== false)
{
    if (preg_match('/.*\.jpg/i',$file) || preg_match('/.*\.jpeg/i',$file))
    {
        $filelist[] = $file;
    }
}

closedir($dir);
sort($filelist);
$pictures = count($filelist);

if(empty($_GET['offset']))
{
    $offset = 0;
}
else
{
    $offset = intval($_GET['offset']);
}

$numpages = intval($pictures / $pics);

if(($offset < 0) || (empty($offset)) || ($offset >= $pictures))
{
    $offset = 0;
}

if($pictures % $pics)
{
    $numpages++;
}

if(!empty($_GET['limit']))
{
    $limit = intval($_GET['limit']);
    if($limit > $pictures || $limit < $pictures)
    {
        $limit = $offset + $pics;
    }
}
else
{
    $limit = $offset + $pics;
}

?>
</head>
<body vlink="#FF8040" alink="#FF0000" link="#FF8040">
<table width="700" align="center" border="0" cellpadding="0"
cellspacing="0">
<tr>
<td> </td>
<td align="right">
<form action="<?php echo $_SERVER['PHP_SELF'] ?>">
<select onChange='submit();' name="offset">
<option selected>Page List</option>
<?php
for ($i=1 ; $i <= $numpages ; $i++)
{
    $next = $pics * ($i-1);
?>
<option value="<?php echo $next ?>"><?php echo "Page $i" ?></option>
<?php
}
?>
</select>

</form>
</td>
</tr>
<tr class="td">
<td align="left">Femina 2004 Winter</td>
<td> </td>
</tr>
</table>
<table width="600" align="center" border="0" cellpadding="2"
cellspacing="2">
<tr>
<td colspan="<?php echo $cols ?>">
</td>
</tr>
<tr>
<?php
for($i = $offset, $y = 1; $i < $limit; $i++)
{
    if(!empty($filelist[$i]))
    {
        $size = getimagesize("$thumb_path/$filelist[$i]");
        echo "<td align=\"center\">\n";
       // echo "<a href=show.php?resim=$filelist[$i]>\n";

echo "<a href=\"javascript:popUpWindow('show.php?resim=$filelist[$i]', 50,50, 400,350);\">\n";
        echo "<img src=\"$thumb_path/$filelist[$i]\" $size[3]
border=$border><br>\n$filelist[$i]\n";
        echo "</a></td>\n";
        if($y == $cols)
        {
            echo "</tr><tr>\n";
            $y = 0;
        }
        $y++;
    }
}

?>
</tr>
</table>
</body>
</html>