diff --git a/adminer/call.inc.php b/adminer/call.inc.php
index 0f7fe0fe..039868d8 100644
--- a/adminer/call.inc.php
+++ b/adminer/call.inc.php
@@ -28,8 +28,7 @@ if (!$error && $_POST) {
 		}
 		$call[] = (isset($out[$key]) ? "@" . idf_escape($field["field"]) : $val);
 	}
-	$result = $connection->multi_query((isset($_GET["callf"]) ? "SELECT" : "CALL") . " " . idf_escape($PROCEDURE) . "(" . implode(", ", $call) . ")");
-	if (!$result) {
+	if (!$connection->multi_query((isset($_GET["callf"]) ? "SELECT" : "CALL") . " " . idf_escape($PROCEDURE) . "(" . implode(", ", $call) . ")")) {
 		echo "<p class='error'>" . error() . "\n";
 	} else {
 		do {
diff --git a/adminer/edit.inc.php b/adminer/edit.inc.php
index 005ab64e..edae47b5 100644
--- a/adminer/edit.inc.php
+++ b/adminer/edit.inc.php
@@ -9,8 +9,10 @@ foreach ($fields as $name => $field) {
 	}
 }
 if ($_POST && !$error && !isset($_GET["select"])) {
-	$location = $_SERVER["REQUEST_URI"]; // continue edit or insert
-	if (!$_POST["insert"]) {
+	$location = $_POST["referer"];
+	if ($_POST["insert"]) { // continue edit or insert
+		$location = $_SERVER["REQUEST_URI"]; //! doesn't work with change in &where field
+	} elseif (!ereg('^.+&select=.+$', $location)) {
 		$location = ME . "select=" . urlencode($TABLE);
 		$i = 0; // append &set converted to &where
 		foreach ((array) $_GET["set"] as $key => $val) {
@@ -96,6 +98,7 @@ if ($fields) {
 ?>
 <p>
 <input type="hidden" name="token" value="<?php echo $token; ?>">
+<input type="hidden" name="referer" value="<?php echo h(isset($_POST["referer"]) ? $_POST["referer"] : $_SERVER["HTTP_REFERER"]); ?>">
 <input type="hidden" name="save" value="1">
 <?php
 if (isset($_GET["select"])) {
diff --git a/changes.txt b/changes.txt
index 0f7bf97c..ab456c2d 100644
--- a/changes.txt
+++ b/changes.txt
@@ -1,3 +1,7 @@
+Adminer 2.3.1-dev:
+Add Drop button to Alter pages (regression from 2.0.0)
+Return to referer after edit
+
 Adminer 2.3.0 (released 2010-02-26):
 Support for permanent login (customization required)
 Search in all tables
diff --git a/editor/include/editing.inc.php b/editor/include/editing.inc.php
index 31cf291b..a1d73585 100644
--- a/editor/include/editing.inc.php
+++ b/editor/include/editing.inc.php
@@ -1,9 +1,17 @@
 <?php
+/** Encode e-mail header in UTF-8
+* @param string
+* @return string
+*/
 function email_header($header) {
 	// iconv_mime_encode requires PHP 5, imap_8bit requires IMAP extension
 	return "=?UTF-8?B?" . base64_encode($header) . "?="; //! split long lines
 }
 
+/** Get keys from first column and values from second
+* @param string
+* @return array
+*/
 function get_key_vals($query) {
 	global $connection;
 	$return = array();
diff --git a/todo.txt b/todo.txt
index 1d2832fc..1a124759 100644
--- a/todo.txt
+++ b/todo.txt
@@ -12,6 +12,7 @@ Highlight SQL textarea, then display query inside textarea in select - may use e
 Blob download and image display in edit form (important for Editor with hidden fields in select)
 Add title to Logout, edit (in select) and select (in menu) in style "hever"
 Shift-click in checkboxes to select range
+? LIKE %% operator
 ? Column and table names auto-completition in SQL textarea
 ? Aliasing of built-in functions can save 7 KB, function minification can save 7 KB, substitution of repetitive $a["a"] can save 4 KB, substitution of $_GET and friends can save 2 KB, JS packer can save 1 KB, not enclosing HTML attribute values can save 1.2 KB, replacing \\n by \n can save .3 KB
 ? Branch binary_compile: LZW compression of translations can save 30 KB, LZW compression of all texts can save 11 KB, remove of base64_decode() + using chars 127-255 in minification can save 1 KB