Ok, manage to get it right after several try.
Here it goes…
Add a input tag at this section.
So that the url will be shown. Else, you can customise the url if you want.
<div class="editor-container">
<textarea name="content" id="content" style="width:100%;" class="mceEditor" rows="15">
<?php if ($selection) echo wp_richedit_pre(htmlspecialchars_decode($selection)); ?>
<?php // if ($url) { echo '<p>'; if($selection) _e('via '); echo "<a href='$url'>$title</a>."; echo '</p>'; } ?>
</textarea>
<input name="elink" type="text" id="elink" class="mceEditor" style="width:100%;" value="<?php echo $url; ?>"/>
</div>
Now go to the top section and insert the $elink stuff.
$quick['post_title'] = $_REQUEST['title'];
$quick['post_content'] = '';
$elink = $_REQUEST['elink'];
and follow by this, adding the post meta
$quick['ID'] = $post_ID;
wp_update_post($quick);
add_post_meta($post_ID, 'elink', $elink, false);
Doesn’t look clean, but it serve my purpose all right.
Cheers