using tags and arrays together

I am trying to use an array to fade out all tagged objects (infoCard) and then turn on the one corresponding to the button click- I have the fadeout animation wired up, but can't seem to figure out how to get it to happen across all tagged objects using an OnClick. The code for the fade in/out is as follows- can anyone give me a hand with making it work with an array of tagged objects?

Any help appreciated, thanks-

using UnityEngine; using UnityEngine.UI; using System.Collections;

public class FadeEffect : MonoBehaviour {

 public Canvas GameObject;

 private Animator fadeTheCard;
 private bool menuOn = false;
 
 
 void Awake () 
     
 {
     

     fadeTheCard = GetComponent<Animator> ();
     
 }
 
 public void fadeInfo()
 {
             if (!menuOn) {
                     fadeTheCard.SetTrigger ("FadeIn");
                     menuOn = true;
     
     
     
     
             }
     }
 public void fadeInfoOff()
 {
     if (menuOn) {
         fadeTheCard.SetTrigger ("FadeOut");
         menuOn = false;
     }
 }
 

}