custom modules, can you swap them? Options

[saruhxd]

i'm making a new layout right now & i was wondering..
is it possible to swap the custom modules?
see, with regular left modules you use this code:
<!-- begin code provided by createblog.com -->
<script language="Javascript">
// original by sean http://www.xanga.com/seanmeister
var tds = document.getElementsByTagName("td");
for (var i = 0; i < tds.length; i++){
if (tds[i].width == "200"){
tds[i].parentNode.appendChild(tds[i].cloneNode(true));
tds[i].parentNode.removeChild(tds[i]);
break;
}}
</script>
<!-- end code provided by createblog.com -->

to swap the modules to the right.
i was looking for a code, but i don't think there is one.
does anyone know if there IS sucha thing, or have one?
thanks for your help