Batur,
You are right. There wasn't any getState method.
I have added it to the paneSplitter class now.
You can pick up the live file:
http://www.dhtmlgoodies.com/packages/dh ... cations.js
or
http://www.dhtmlgoodies.com/packages/dh ... omments.js
If you're using the new include mechanism, you can download
http://www.dhtmlgoodies.com/packages/dh ... plitter.js
You can call the method like this:
paneSplitter.getState('west');
it will return "collapsed" or "expanded"