How can i find out the ' Windows Cluster Core Device' using vbscript ?

Hi,

 I would like to find out the 'Cluster Core' device using vbscript. I have tried to check with 'ClusSvc' Cluster Service using Win32_Service class. But node device also will response the particular class. So I need to find out exactly, This is cluster core and these are all nodes. How can i possible ?

Here, opman-cluster is the core cluster device, ClusSvc is running in both opman-cluster& opman-node1 (Node) . Then how to differentiate this is cluster core and this is node. Please suggest.

If anybody knows that, kindly let me know.

Thanks & Regards,

Karpahasundaram M.