String Problem in Java Script

Here is my script, hopefully it is easier to read now. The complete line for
var sirenGameObjects : GameObject = GameObject.FindGameObjectsWithTag(tag

is

var sirenGameObjects : GameObject = GameObject.FindGameObjectsWithTag(tag.Siren);

I am getting three errors,

Assets/PlayerSightingLast.js(21,93): BCE0019: ‘sirens’ is not a member of ‘String’.

Assets/PlayerSightingLast.js(19,58): BCE0019: ‘mainLight’ is not a member of ‘String’.

Assets/PlayerSightingLast.js(18,62): BCE0019: ‘alarm’ is not a member of ‘String’.

On line 21,19, and 18. Any advice?

public var position : Vector3 = new Vector3(1000f, 1000f, 1000f);        
public var resetPosition : Vector3 = new Vector3(1000f, 1000f, 1000f);  
public var lightHighIntensity : float = 0.25f;                          
public var lightLowIntensity : float = 0f;                              
public var fadeSpeed : float = 7f;                                      
public var musicFadeSpeed : float = 1f;                                 


private var alarm : AlarmsLights;                                     
private var mainLight : Light;                                          
private var panicAudio : AudioSource;                                    
private var sirens : AudioSource[];                                     

function Awake ()
	{        
		alarm = GameObject.FindGameObjectWithTag(tag.alarm)GetComponent(AlarmsLights);
    	mainLight = GameObject.FindGameObjectWithTag(tag.mainLight).light;
  		panicAudio = transform.Find("secondaryMusic").audio;
  		var sirenGameObjects : GameObject[] = GameObject.FindGameObjectsWithTag(tag.Siren);
    	sirens = new AudioSource[sirenGameObjects.Length];
 		for(var i = 0; i < sirens.Length; i++);
    {
        sirens _= sirenGameObjects*.audio;*_

}
}

function Update ()
{

SwitchAlarms();
MusicFading();
}

function SwitchAlarms ()
{

alarm.alarmOn = position != resetPosition;

var newIntensity : float;

if(position != resetPosition)

newIntensity = lightLowIntensity;
else

newIntensity = lightHighIntensity;

mainLight.intensity = Mathf.Lerp(mainLight.intensity, newIntensity, fadeSpeed * Time.deltaTime);

for(var i = 0; i < sirens.Length; i++)
{

if(position != resetPosition && !sirens*.isPlaying)*
sirens*.Play();*

else if(position == resetPosition)
sirens*.Stop();*
}
}

function MusicFading ()
{

if(position != resetPosition)
{

audio.volume = Mathf.Lerp(audio.volume, 0f, musicFadeSpeed * Time.deltaTime);

panicAudio.volume = Mathf.Lerp(panicAudio.volume, 0.8f, musicFadeSpeed * Time.deltaTime);
}
else
{

audio.volume = Mathf.Lerp(audio.volume, 0.8f, musicFadeSpeed * Time.deltaTime);
panicAudio.volume = Mathf.Lerp(panicAudio.volume, 0f, musicFadeSpeed * Time.deltaTime);
}
}

Try :

alarm = GameObject.FindGameObjectWithTag(tag.alarm).GetComponent(AlarmsLights);