Waypoints script: add 2 animations

Hello,

I'm doing a scene where some npc will moving randomnly in the piece around the player. In order to have this path, I used a waypoint script I found here: link text

The script works very well, but there's a little problem: I have only one animation on my npc, so he always walks, even in stop times when he reached a waypoint. My question is:

How can I add one more animation (idle) on stop times?

I made the npc character in Maya with an animation on it, so I imported the .mb file directly into my project to have the model, the rig and the animation, and then I imported an idle animation in a FBX file. What do I need to merge theses animations according to the movement of my character?

Here's my script I used for the waypoints, if you need it:

     var accel = 0.8;
     var inertia = 0.9;
     var speedLimit = 10.0;
     var minSpeed = 1.0;
     var stopTime = 1.0;
      
     private var currentSpeed = 0.0;
      
     private var functionState = 0;
     private var accelState : boolean;
     private var slowState : boolean;
      
     private var waypoint : Transform;
     var rotationDamping = 6.0;
     var smoothRotation = true;
     var waypoints : Transform[];
     private var WPindexPointer : int;
      
      
     function Start ()
     {
         functionState = 0;     
     }
      
      
     function Update ()
     {
         if (functionState == 0)
         {
             Accell ();
         }
         if (functionState == 1)
         {
             Slow ();
         }
         waypoint = waypoints[WPindexPointer];
     }
      
      
     function Accell ()
     {
         if (accelState == false)
         {                        
             accelState = true;   
             slowState = false;   
         }                        
         if (waypoint)
         {
             if (smoothRotation)
             {
                 var rotation = Quaternion.LookRotation(waypoint.position - transform.position);
                 transform.rotation = Quaternion.Slerp(transform.rotation, rotation, Time.deltaTime * rotationDamping);
             }
         }
         currentSpeed = currentSpeed + accel * accel;
         transform.Translate (0,0,Time.deltaTime * currentSpeed);
        
         if (currentSpeed >= speedLimit)
         {
             currentSpeed = speedLimit;
         }
     }
      
      
     function OnTriggerEnter ()
     {
         functionState = 1;
         WPindexPointer++;  
        
         if (WPindexPointer >= waypoints.Length)
         {
             WPindexPointer = 0;
         }
     }
      
      
     function Slow ()
     {
         if (slowState == false)
         {                      
             accelState = false;
             slowState = true;   
         }                      
        
         currentSpeed = currentSpeed * inertia;
         transform.Translate (0,0,Time.deltaTime * currentSpeed);
        
         if (currentSpeed <= minSpeed)
             {
             currentSpeed = 0.0;
             yield WaitForSeconds (stopTime);
             functionState = 0;
         }
     }

 

I'm new to Unity and I'm not so good at scripting badly, so excuse my (probably) nooby question, but I'm stuck here and I don't know how to proceed to achieve this.

Thank you very much!