Setting featured and frontpage listing to show top when searching

I was able to add code to the _1.php file and make the frontpage listings or featured listings to show on top when someone perform advance search. But I was not able to make both to show on top at the same time.

The reason I want to make both to show on top is because when people buy the enhancements, they expect their listing to be better on placement.

Here is the code I am adding to make either featured listing or frontpage listings to show on top and it works fine.

<option value=”featured*asc” <?php if($core_admin_values[‘display’][‘orderby’] == “featured*asc”){ echo “selected=selected”; } ?>>Featured (Featured First)</option>

<option value=”frontpage*asc” <?php if($core_admin_values[‘display’][‘orderby’] == “frontpage*asc”){ echo “selected=selected”; } ?>>Frontpage (Frontpage First)</option>

So, now I am trying to make both to show at the same time, but frontpage listings to show first and before the featured listings.

I use this code but it doesn’t work.

<option value=”frontpage*asc&orderby=featured&order=desc” <?php if($core_admin_values[‘display’][‘orderby’] == “frontpage*asc&orderby=featured&order=desc”){ echo “selected=selected”; } ?>>Frontpage and Featured(Frontpage and Featured First)</option>

So what’s the right code to make both to show at the same time, but frontpage listings show top, featured listings show second, and the rest listings will show.