different objects with the same script wouldn't react correctly

I have the following code in a script attached to a few different objects.

 public void ButtonClick(GameObject button)
 {
     if (isSelected == true){
         if (!this.animation.isPlaying) {
             this.animation.Play ("animation01");
         }
     }
 }

and some code like the following in another script which in also being attached to a few game objects

 public void Update()
 {
     if (radioButton._toggle.value == true) 
         targetEvent.Selected();
     else targetEvent.UnSelect();
 }

the Selected()and UnSelect() call are refering to the isSelected varieble in the former script. I was trying to use radio buttons to evaluate which object have been selected and play the animation when a gui button is clicked. all the references in the inspector are correct,even the isSelected states are working as expected, but the animation wounldn't play correctly. Is there a better way of doing this? any help would be appreciated.