no visible button on GUI

Hi!

I wanna know if is possible to have a GUI button that you can click on, but you can’t see it at all.
I tried to use a texture that is transparent, but I can see the border of the button.

Is there any other way?

Thanks!!

Yes it is possible. Do not change anything of the Design.
Example:

var Design : GUIStyle;

function OnGUI () {
    if(GUI.Button(Rect(10,10,100,30),"", Design)){
        //Your code...
    }
}