diff -r 635033a29c48 -r dabcd35f8f92 www/prod_edit.php
--- a/www/prod_edit.php	Thu Jan 03 14:21:35 2019 +0100
+++ b/www/prod_edit.php	Thu Jan 03 20:56:47 2019 +0100
@@ -30,7 +30,7 @@
         <td style="vertical-align: top; float: right; padding: 3px;">Brouw code:</td>
         <td align="left" style="vertical-align: top; padding: 3px;"><input id="code" /></td>
         <td style="vertical-align: top; float: right; padding: 3px;">Start planning:</td>
-        <td align="left" style="vertical-align: top;"><div id="birth"></div></td>
+        <td align="left" style="vertical-align: top;"><input readonly="1" id="birth" /></td>
         <td style="vertical-align: top; float: right; padding: 3px;">Brouw fase:</td>
         <td align="left" style="vertical-align: top; padding: 3px;"><input id="stage" readonly /></td>
        </tr>