diff --git a/adminer/include/adminer.inc.php b/adminer/include/adminer.inc.php
index 7575b2a7..25965c53 100644
--- a/adminer/include/adminer.inc.php
+++ b/adminer/include/adminer.inc.php
@@ -119,6 +119,37 @@ function adminer_message_query($query) {
 	return call_adminer('message_query', " <a href='#$id' onclick=\"return !toggle('$id');\">" . lang('SQL command') . "</a><div id='$id' class='hidden'><pre class='jush-sql'>" . htmlspecialchars($query) . '</pre><a href="' . htmlspecialchars($SELF . 'sql=&history=' . (count($_SESSION["history"][$_GET["server"]][$_GET["db"]]) - 1)) . '">' . lang('Edit') . '</a></div>', $query);
 }
 
+/** Functions displayed in edit form
+* @param array single field from fields()
+* @return array
+*/
+function adminer_edit_functions($field) {
+	$return = array("");
+	if (!isset($_GET["default"])) {
+		if (ereg('char|date|time', $field["type"])) {
+			$return = (ereg('char', $field["type"]) ? array("", "md5", "sha1", "password", "uuid") : array("", "now")); //! JavaScript for disabling maxlength
+		}
+		if (!isset($_GET["call"]) && (isset($_GET["select"]) || where($_GET))) {
+			// relative functions
+			if (ereg('int|float|double|decimal', $field["type"])) {
+				$return = array("", "+", "-");
+			}
+			if (ereg('date', $field["type"])) {
+				$return[] = "+ interval";
+				$return[] = "- interval";
+			}
+			if (ereg('time', $field["type"])) {
+				$return[] = "addtime";
+				$return[] = "subtime";
+			}
+		}
+	}
+	if ($field["null"] || isset($_GET["default"])) {
+		array_unshift($return, "NULL");
+	}
+	return call_adminer('edit_functions', $return, $field);
+}
+
 /** Prints navigation after Adminer title
 * @param string can be "auth" if there is no database connection or "db" if there is no database selected
 * @return bool true if default navigation should be printed
diff --git a/adminer/include/functions.inc.php b/adminer/include/functions.inc.php
index 0d84836b..ec2b46e2 100644
--- a/adminer/include/functions.inc.php
+++ b/adminer/include/functions.inc.php
@@ -286,29 +286,7 @@ function input($name, $field, $value, $function) {
 	} else {
 		$first = ($field["null"] || isset($_GET["default"])) + isset($_GET["select"]);
 		$onchange = ($first ? ' onchange="var f = this.form[\'function[' . addcslashes($name, "\r\n'\\") . ']\']; if (' . $first . ' > f.selectedIndex) f.selectedIndex = ' . $first . ';"' : '');
-		$options = array("");
-		if (!isset($_GET["default"])) {
-			if (ereg('char|date|time', $field["type"])) {
-				$options = (ereg('char', $field["type"]) ? array("", "md5", "sha1", "password", "uuid") : array("", "now")); //! JavaScript for disabling maxlength
-			}
-			if (!isset($_GET["call"]) && (isset($_GET["select"]) || where($_GET))) {
-				// relative functions
-				if (ereg('int|float|double|decimal', $field["type"])) {
-					$options = array("", "+", "-");
-				}
-				if (ereg('date', $field["type"])) {
-					$options[] = "+ interval";
-					$options[] = "- interval";
-				}
-				if (ereg('time', $field["type"])) {
-					$options[] = "addtime";
-					$options[] = "subtime";
-				}
-			}
-		}
-		if ($field["null"] || isset($_GET["default"])) {
-			array_unshift($options, "NULL");
-		}
+		$options = adminer_edit_functions($field);
 		echo (count($options) > 1 || isset($_GET["select"]) ? '<select name="function[' . $name . ']">' . (isset($_GET["select"]) ? '<option value="orig">' . lang('original') : '') . optionlist($options, $function) . '</select>' : "&nbsp;") . '<td>';
 		if ($field["type"] == "set") { //! 64 bits
 			preg_match_all("~'((?:[^']+|'')*)'~", $field["length"], $matches);
diff --git a/editor/include/adminer.inc.php b/editor/include/adminer.inc.php
index 788adb29..ca6b1ed1 100644
--- a/editor/include/adminer.inc.php
+++ b/editor/include/adminer.inc.php
@@ -111,6 +111,10 @@ function adminer_message_query($query) {
 	return call_adminer('message_query', "<!-- " . str_replace("--", "--><!--", $query) . " -->", $query);
 }
 
+function adminer_edit_functions($field) {
+	return call_adminer('edit_functions', array(""), $field);
+}
+
 function adminer_navigation($missing) {
 	global $SELF;
 	if (call_adminer('navigation', true, $missing) && $missing != "auth") {