Added IsFunc method.
Added IsFunc method.

yatsek/IronAHK,polyethene/IronAHK,yatsek/IronAHK,yatsek/IronAHK,polyethene/IronAHK,michaltakac/IronAHK,michaltakac/IronAHK,michaltakac/IronAHK,michaltakac/IronAHK,michaltakac/IronAHK,polyethene/IronAHK,polyethene/IronAHK,yatsek/IronAHK,yatsek/IronAHK