Enable panel in Canvas when Trigger Collids

Trying to enable a panel in the canvas called MessageBox when the Trigger Collids with a ameObject, can someone help me. Thanks in advance

 var CanvasObject : GameObject;
 
 function OnTriggerEnter (info:Collider) 
 {
     var message = CanvasObject.Find("MessageBox");
     message().enabled = true;
 
 }