The following code needs to be added to your functions.php file:
<?php /** * All in one SEO title and description autocomplete */ function aiosp_editor_title() { ?> <script type="text/javascript"> jQuery(document).ready(function(){ var title = jQuery("#title"), aiosp_title = jQuery('[name=aiosp_title]'), val_title = title.val().replace(/^s+|s+$/gm,'') || '', val_aiosp_title = aiosp_title.val().replace(/^s+|s+$/gm,'') || ''; if (val_aiosp_title.length == 0 && val_title.length > 0) { aiosp_title.val( val_title ); } title.keydown(function(){ if ( title.val().trim() == aiosp_title.val().trim() ) { setTimeout(function () { aiosp_title.val( title.val() ); }, 1); } }); }); </script> <?php } add_action( 'admin_head-post.php', 'aiosp_editor_title'); add_action( 'admin_head-post-new.php', 'aiosp_editor_title'); ?>