diff --git a/adminer/indexes.inc.php b/adminer/indexes.inc.php
index 2cbfba31..9fb07aff 100644
--- a/adminer/indexes.inc.php
+++ b/adminer/indexes.inc.php
@@ -90,7 +90,12 @@ if (!$row) {
 
 <form action="" method="post">
 <table cellspacing="0" class="nowrap">
-<thead><tr><th><?php echo lang('Index Type'); ?><th><?php echo lang('Column (length)'); ?><th><?php echo lang('Name'); ?><th><noscript><input type='image' class='icon' name='add[0]' src='../adminer/static/plus.gif' alt='+' title='<?php echo lang('Add next'); ?>'></noscript>&nbsp;</thead>
+<thead><tr>
+<th><?php echo lang('Index Type'); ?>
+<th><input type="submit" style="z-index: -1; position: absolute; height: 0;"><?php echo lang('Column (length)'); ?>
+<th><?php echo lang('Name'); ?>
+<th><noscript><input type='image' class='icon' name='add[0]' src='../adminer/static/plus.gif' alt='+' title='<?php echo lang('Add next'); ?>'></noscript>&nbsp;
+</thead>
 <?php
 $j = 1;
 foreach ($row["indexes"] as $index) {
diff --git a/adminer/static/functions.js b/adminer/static/functions.js
index 77a122a6..cc761780 100644
--- a/adminer/static/functions.js
+++ b/adminer/static/functions.js
@@ -635,7 +635,7 @@ function findDefaultSubmit(form) {
 	var inputs = form.getElementsByTagName('input');
 	for (var i = 0; i < inputs.length; i++) {
 		var input = inputs[i];
-		if (input.type == 'submit') {
+		if (input.type == 'submit' && !input.style.zIndex) {
 			return input;
 		}
 	}