Unnamed

<?	$source = $_GET['src'];		$thumb_height = 120;	$thumb_width = 120;	$folder = "thumb/";		if($_GET['type'] == 'landscape') {		$thumb_width = 216;		$thumb_height = 160;		$folder = $_GET['type'].'/';	}		if($_GET['type'] == 'landscape-big') {		$thumb_width = 248;		$thumb_height = 184;		$folder = $_GET['type'].'/';	}		if($_GET['type'] == 'globophoto') {		$thumb_width = 179;		$thumb_height = 179;		$folder = $_GET['type'].'/';	}		if($_GET['type'] == 'mapthumb') {		$thumb_width = 70;		$thumb_height = 70;		$folder = $_GET['type'].'/';	}		if(!file_exists('thumbcache/'.$folder.$source)) {    	$size = getimagesize($source);    	$width = $size[0];    	$height = $size[1]; 		    	if($width> $height) {    	    $x = ceil(($width - $height) / 2 );    	    $width = $height;    	} elseif($height> $width) {    	    $y = ceil(($height - $width) / 2);    	    $height = $width;    	} 		 		$new_im = ImageCreatetruecolor($thumb_width,$thumb_height);    	$im = imagecreatefromjpeg($source);    	imagecopyresampled($new_im,$im,0,0,$x,$y,$thumb_width,$thumb_height,$width,$height);    	/* what do I put here to write the jpg file */    	header('Content-Type: image/jpeg');    	imagejpeg($new_im,$dest,100);    } ?>