countdowntimer/timerjs loads unnecessarily, js error

I am using the module to display a count down for one node only, while browsing other nodes, the javacript always loads, there's no need since the rest of my nodes do not need it, so firebug throws a javascript error.

this is what is loaded
<script type="text/javascript" src="/countdowntimer/timerjs"></script>

Is there anyway to load the module only when the nodes needs it?

Thanks.