dynamically changing a link reference

Am not really sure how to explain this but here goes:

On a clients site, I have created a testimonials pag and am using a recordset to draw the relevant info from the database to display for the relevant testimonial.

Part of each testimonial includes a modal to pop up the actual testimonial.

What I am struggling to achieve is, if I am using a repeat region using 2 or more records, then the pop up 'breaks'

The pop up when using just one record is fine and looks like this:

<a class="poplight" href="#?w=700" rel="popupreference">testimonial</a>

which then displays the following

<div class="popup_block" id="popupreference">Content to go here</div>

What I have been trying to do is to use the content value from the database to dynamically change the 'popupreference' bit using the Content Value from 'Popup Name' eg,

<a class="poplight" href="#?w=700" rel="<?php include('WA_CMS/addtosite.php'); echo str_replace(array("<p>","</p>"),"",WA_getCMSContent($database_PowerCMSConnection, $PowerCMSConnection, 'Clients', 'Popup Name', false, $row_ClientsRS['ContentPageSetOrder'])); ?>">testimonial</a></div>

<div class="popup_block" id="<?php include('WA_CMS/addtosite.php'); echo str_replace(array("<p>","</p>"),"",WA_getCMSContent($database_PowerCMSConnection, $PowerCMSConnection, 'Clients', 'Popup Name', false, $row_ClientsRS['ContentPageSetOrder'])); ?>">Content to go here</div>

Is it possible to achieve what I am trying to do uising this method and if so, what am I doing wrong please?

Thanks

Jamie