turret shoot if in range

so i`m making a game were turrets have to shoot at you though they should shoot only of the they are in range but when i save the code it gives me 2 errors:

Operator '

Cannot convert 'float' to 'System.Type',

here is the code i used:

     #pragma strict
 
 function Start () {
 
 }
 var speed = 3000;
 
 var distance = int;
 var maxDistance = 50;
 var myTransform = transform;
 
 var LookAtTarget:Transform;
 
 var bullitPrefab:Transform;
 
 var damp = 6.0;
 
 var savedTime = 0;
 
 function Update () 
 {
     distance = (LookAtTarget.position - myTransform.position).magnitude;
 
 
     if(LookAtTarget && distance < maxDistance)
     {
     var rotate = Quaternion.LookRotation(LookAtTarget.position - transform.position);
 
     transform.rotation = Quaternion.Slerp(transform.rotation,rotate,Time.deltaTime * damp);
 
     var seconds : int = Time.time;
 
     var evenodd = (seconds / 2);
 
     if (evenodd) 
     {
     Shoot(seconds);
     }
     }
 }   
 function Shoot(seconds)
 {
 
     if(seconds!=savedTime)
     {
        var bullit = Instantiate(bullitPrefab,transform.Find("spawnPoint").transform.position,
                     Quaternion.identity);
 
        bullit.rigidbody.AddForce(transform.forward * speed);
 
        savedTime = (seconds);    
 
     } 
 }

so i hope someone can help me and thank you.