popup div

[dsjoes]

i have a div with an iframe in it that when i click on a link it pops up but what i am trying to do is add ?old=$folderName to the link but when i do the popup is blank. so does anyone know something i can try. (i am using facebox to create the popup)

 

this is the link for the popup
<a href='#Rename' rel='facebox'>Rename</a>

this is with ?old=$folderName added this displays the blank popup
<a href='#Rename?old=$folderName' rel='facebox'>Rename</a>

 

this is the div with iframe

<div id="Rename" style="display:none"><iframe  src="form.php?old=<?php echo $old=$_GET['old'] ?>" frameborder="0">
</iframe></div>