Thanks Arcanor for your help but after assigning the gameobject(with a script) to the notify option, in drop down I am not getting the list of my functions or anything, How can i assign a particular function in the script to that button from drop down. I put the line "EventDelegate.Add(button.onClick, funshop); " in the start function of the script than I got errrors. So please tell me what changes I have to made in my script so that I can get a list of functions in drop down. Thanks a lot for the help..