One thing I found useful when looking if a function already exists under a different name is to use Hayoo to search for the type, i.e.:<div><br></div><div><a href="http://holumbus.fh-wedel.de/hayoo/hayoo.html#0:(a%20-%3E%20Bool)%20-%3E%20%5Ba%5D%20-%3E%20(%5Ba%5D%2C%5Ba%5D)">http://holumbus.fh-wedel.de/hayoo/hayoo.html#0:(a%20-%3E%20Bool)%20-%3E%20%5Ba%5D%20-%3E%20(%5Ba%5D%2C%5Ba%5D)</a></div>
<div><br>- Chris</div>