diff --git a/inc/config.php b/inc/config.php
index 44dc60ec..fbaca0d8 100644
--- a/inc/config.php
+++ b/inc/config.php
@@ -40,7 +40,7 @@
 	define('ERROR_NOMOVE',	'The server failed to handle your upload.');
 	define('ERROR_FILEEXT',	'Unsupported image format.');
 	define('ERR_INVALIDIMG','Invalid image.');
-	define('ERR_FILSIZE', 'The file was too large.');
+	define('ERR_FILESIZE', 'Maximum file size: %maxsz% bytes<br>Your file\'s size: %filesz% bytes');
 	define('ERR_MAXSIZE', 'The file was too big.');
 	
 	// For resizing, max values
@@ -48,7 +48,7 @@
 	define('THUMB_HEIGHT',	200);
 	
 	// Maximum image upload size in bytes
-	define('MAX_FILESIZE',	1048576); // 10MB
+	define('MAX_FILESIZE',	10*1024*1024); // 10MB
 	// Maximum image dimensions
 	define('MAX_WIDTH',		10000);
 	define('MAX_HEIGHT',	MAX_WIDTH);
diff --git a/inc/display.php b/inc/display.php
index b988e3bc..92f6eca8 100644
--- a/inc/display.php
+++ b/inc/display.php
@@ -15,7 +15,7 @@
 	}
 	
 	function error($message) {
-		die(Element('page.html', Array('index' => ROOT, 'title'=>'Error', 'subtitle'=>'An error has occured.', 'body'=>"<h1>$message</h1><p style=\"text-align:center;\"><a href=\"" . ROOT . FILE_INDEX . "\">Go back</a>.</p>")));
+		die(Element('page.html', Array('index' => ROOT, 'title'=>'Error', 'subtitle'=>'An error has occured.', 'body'=>"<center><h2>$message</h2></center><p style=\"text-align:center;\"><a href=\"" . ROOT . FILE_INDEX . "\">Go back</a>.</p>")));
 	}
 	
 	class Post {
diff --git a/inc/functions.php b/inc/functions.php
index b465488c..e251c054 100644
--- a/inc/functions.php
+++ b/inc/functions.php
@@ -1,4 +1,18 @@
 <?php
+	function sprintf3($str, $vars, $delim = '%') {
+		$replaces = array();
+		foreach($vars as $k => $v) {
+			$replaces[$delim . $k . $delim] = $v;
+		}
+		return str_replace(array_keys($replaces),
+		                   array_values($replaces), $str);
+	}
+
+	function commaize($n) {
+		$n = strval($n);
+		return (intval($n) < 1000) ? $n : commaize(substr($n, 0, -3)) . ',' . substr($n, -3);
+	}
+
 	function sql_open() {
 		global $sql;
 		$sql = @mysql_connect(MY_SERVER, MY_USER, MY_PASSWORD) or error('Database error.');
@@ -502,4 +516,4 @@
 	function int_to_word($n) {
 		return chr($n & 255).chr(($n >> 8) & 255);
 	}
-?>
\ No newline at end of file
+?>
diff --git a/post.php b/post.php
index 94b80f8c..52048be8 100644
--- a/post.php
+++ b/post.php
@@ -74,8 +74,13 @@
 		$post['filename'] = $_FILES['file']['name'];
 		$post['has_file'] = $OP || !empty($_FILES['file']['tmp_name']);
 		
-		if($post['has_file'] && $_FILES['file']['size'] > MAX_FILESIZE)
-			error(ERR_FILSIZE);
+		if($post['has_file']) {
+			$size = $_FILES['file']['size'];
+			if($size > MAX_FILESIZE)
+				error(sprintf3(ERR_FILESIZE, array(
+					'filesz'=>commaize($size),
+					'maxsz'=>commaize(MAX_FILESIZE))));
+		}
 		
 		$trip = generate_tripcode($post['name']);
 		$post['name'] = $trip[0];