thumbnail and watermark

[fullyloaded]

hi
i have a great script for watermarking images in a folder but the thing is its doing the thumbnail as well because there jpg like the images is there away to have it do just the images and not the thumbnails without changing the thumbnails from jpg to what ever else?what im saying is i only what the images to be watermarked and not the thumbnails here is the code it also is using .htaccess file and in that file is this [code]addhandler wtmrk jpg
action wtmrk /upload/modify.php[/code]
[code]<?


// IMAGE WATERMARK (comment line below if you do not want to use image watermark)
Define('WATERMARK_IMAGE', './wt.png'); // path to watermark image
Define('WATERMARK_PERCENT', '60'); // Intensity of the transition (in percent)


// TEXT WATERMARK (comment line below if you do not want to use text)
//Define('WATERMARK_TEXT', 'SinglesPleasures.com'); // text to place (image will not be used)
Define('WATERMARK_TEXT_FONT', '4'); // font 1 / 2 / 3 / 4 / 5
Define('TEXT_SHADOW', '0'); // 1 - yes / 0 - no
Define('TEXT_COLOR', '#FFFFFF'); // text color


// GENERAL SETTINGS
Define('WATERMARK_ALIGN_H', 'right'); // left / right / center
Define('WATERMARK_ALIGN_V', 'bottom'); // top / bottom / center
Define('WATERMARK_MARGIN', '10'); // margin

// ----------------------------------------------------------------------------------------

$dr=preg_replace('/modify\.php.+/', '', $_SERVER['PHP_SELF']);
$filename=str_replace($dr, './', $_SERVER['PATH_INFO']);

$lst=GetImageSize($filename);
$image_width=$lst[0];
$image_height=$lst[1];
$image_format=$lst[2];

if ($image_format==1) {
  Header("Content-Type:image/gif");
  readfile($filename);
  exit;
} elseif ($image_format==2) {
  $old_image=imagecreatefromjpeg($filename);
} elseif ($image_format==3) {
  $old_image=imagecreatefrompng($filename);
} else {
  readfile($filename);
  exit;
}


if (Defined('WATERMARK_TEXT') && WATERMARK_TEXT!='') {
// text

  $color = eregi_replace("#","", TEXT_COLOR);
  $red = hexdec(substr($color,0,2));
  $green = hexdec(substr($color,2,2));
  $blue = hexdec(substr($color,4,2));

  $text_color = imagecolorallocate ($old_image, $red, $green, $blue);

  $text_height=imagefontheight(WATERMARK_TEXT_FONT);
  $text_width=strlen(WATERMARK_TEXT)*imagefontwidth(WATERMARK_TEXT_FONT);
  $wt_y=WATERMARK_MARGIN;
  if (WATERMARK_ALIGN_V=='top') {
  $wt_y=WATERMARK_MARGIN;
  } elseif (WATERMARK_ALIGN_V=='bottom') {
  $wt_y=$image_height-$text_height-WATERMARK_MARGIN;
  } elseif (WATERMARK_ALIGN_V=='center') {
  $wt_y=(int)($image_height/2-$text_height/2);
  }

  $wt_x=WATERMARK_MARGIN;
  if (WATERMARK_ALIGN_H=='left') {
  $wt_x=WATERMARK_MARGIN;
  } elseif (WATERMARK_ALIGN_H=='right') {
  $wt_x=$image_width-$text_width-WATERMARK_MARGIN;
  } elseif (WATERMARK_ALIGN_H=='center') {
  $wt_x=(int)($image_width/2-$text_width/2);
  }

  if (TEXT_SHADOW=='1') {
  imagestring($old_image, WATERMARK_TEXT_FONT, $wt_x+1, $wt_y+1, WATERMARK_TEXT, 0);
  }
  imagestring($old_image, WATERMARK_TEXT_FONT, $wt_x, $wt_y, WATERMARK_TEXT, $text_color);

}

if (Defined('WATERMARK_IMAGE') && WATERMARK_IMAGE!='' && file_exists(WATERMARK_IMAGE)) {
// image


$lst2=GetImageSize(WATERMARK_IMAGE);
$image2_width=$lst2[0];
$image2_height=$lst2[1];
$image2_format=$lst2[2];

if ($image2_format==2) {
  $wt_image=imagecreatefromjpeg(WATERMARK_IMAGE);
} elseif ($image2_format==3) {
  $wt_image=imagecreatefrompng(WATERMARK_IMAGE);
}

  if ($wt_image) {

  $wt_y=WATERMARK_MARGIN;
  if (WATERMARK_ALIGN_V=='top') {
    $wt_y=WATERMARK_MARGIN;
  } elseif (WATERMARK_ALIGN_V=='bottom') {
    $wt_y=$image_height-$image2_height-WATERMARK_MARGIN;
  } elseif (WATERMARK_ALIGN_V=='center') {
    $wt_y=(int)($image_height/2-$image2_height/2);
  }

  $wt_x=WATERMARK_MARGIN;
  if (WATERMARK_ALIGN_H=='left') {
    $wt_x=WATERMARK_MARGIN;
  } elseif (WATERMARK_ALIGN_H=='right') {
    $wt_x=$image_width-$image2_width-WATERMARK_MARGIN;
  } elseif (WATERMARK_ALIGN_H=='center') {
    $wt_x=(int)($image_width/2-$image2_width/2);
  }

  imagecopymerge($old_image, $wt_image, $wt_x, $wt_y, 0, 0, $image2_width, $image2_height, WATERMARK_PERCENT);
  }

}

if ($image_format==2) {
  imageJpeg($old_image);
}
if ($image_format==3) {
  imagePng($old_image);
}


?>[/code]