How do i fix this parsing error?

 using UnityEngine;
 using System.Collections;
 
 public class ZombieBehavior MonoBehaviour 
 {
     var target Transform; //the enemy's target
     var moveSpeed = 3; // move speed
     var rotationSpeed = 3; // speed of turning
     var attackThreshold = 3; // distance to attack in
     var chaseThreshold = 10; // distance to start chasing in
     var giveUpThreshold = 20; // distance at which the AI gives up
     var attackRepeatTime = 1; // delay between attacks
     
     private var chasing = false;
     private var attackTime = Time.time;
     
     
     var myTransform Transform; //Current enemy transform data
     
     
     function Awake()
     {
         myTransform = transform;//cache transform data for easy access
     }
     
     function Start()
     {
         target = GameObject.FindWithTag("Player").transform; //Target the player
     }
     
     function Update ()
     {    //check distance to target every frame
         var distance = (target.position - myTransform.position).magnitude;
         if (chasing)
         {
             //rotate to look at player
             myTransform.rotation = Quaternion.Slerp(myTransform.rotation, Quaternion.LookRotation(target.position - myTransform.position), rotationSpeed*Time.deltaTime);
             
             //move towards player
             myTransform.position += myTransform.forward * moveSpeed * Time.deltaTime;
         
             //give up of too far away
             if(distance > giveUpThreshold)
             {
                 chasing = false;
             }
             
             // attack if close enough
             if(distance < attackThreshold & & Time.time > attackTime)
             {
                 attackTime = Time.time + attackRepeatTime; //Attack
             }
             
             else
             {
                 //not currently chasing
                 //Start chasing if target comes close enough
                 if (distance < chaseThreshold)
                 {
                     chasing = true;
                 }
             }
         }        
     }
     
 }