ok, I think it's going to be easy enough to put the logic into the 1st MetaMod, then put the corresponding module id into a global variable to pick up in the 2nd module position.

So in the 1st module position, something like this:

$r = mt_rand(0, 5);
$images = array(33, 34, 35, 36, 37, 38); // 5 image modules
$text = array(101, 102, 103, 104, 105); // 5 text modules corresponding to image modules
global $metamod_text;
$metamod_text = $text[$r]; // used in other module
return $images[$r]; // for this module position, show image


Then in the 2nd module position (or just 2nd MetaMod):

global $metamod_text;
return $metamod_text; // for this module position, show text from other MetaMod


Hope that helps,
Stephen

Think I cured it set the random range between 0-4 ie 5 'array positions'

I've searched for this question but I don't know if I've phrased it correctly. I'm working on a Joomla website and on one of the pages I have three module positions content-top-a content-top-b content-top-c So essentially the page width is divided into thirds.