GD Question

[Craig Hoffman <choffman@xxxxxxxxxx>]

Hello Everyone,
I wrote a GD function that resizes some images and displays them as 
thumbnails. When I put the function in the index.php page I receive an 
error Warning: Headers have already been sent... then it shows a bunch 
of binary.  I do not want re-save the file, I just want resize and show 
it.  What am I doing wrong here?  Any help would be great.
- Craig

				//query the DB for image name
					Some query...
				//Photo varibale
					$route_photo = $row["route_photo"];
				
				//Start GD
				//New Image resize
					$new_width = 125;
					$new_height = 225;
					
				//Content Type
					header("Content-type: image/jpeg");
					
				//Start new image resize	
					list($width_orig, $height_orig) = 
getImageSize("./images/climbs/$route_photo");
					
					if ($new_width && ($width_orig < $height_orig)) {
							$new_width = ($new_height / $height_orig) * $width_orig;
						} else {
							$new_height = ($new_width / $width_orig) * $height_orig;
							}
				
				//resample the image
					$thumb = ImageCreateTrueColor($new_width, $new_height);
					$tmp_image = ImageCreateFromJPEG("./images/climbs/$route_photo");
					ImageCopyResampled($thumb, $tmp_image, 0, 0, 0, 0, $new_width, 
$new_height, $width_orig, $height_orig);
					
					ImageJPEG($thumb,'','100');
					ImageDestroy($thumb);

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