NGUI Button

please go this link- http://www.tasharen.com/ngui/example8.html .In this menu there is option button when i press option button it goes to Option menu, can u explain through script how it has done in NGUI.

I’m not sure exactly what the issue is, but I wrote up a simple tutorial with pictures to illustrate how to create a functioning button in NGUI.

Unity3D: How to Create a Simple Button with NGUI

Basically, you create a Button widget, write a script that does something in the OnClick () method, and attach that script to the “Button” GameObject.