Flashlight not working

[3D_Game_maker]

so im trying to make a toggleable flashlight with F and have the power drain over time but i cant turn the flashlight off with f, heres the script

var LightSource : Light;
static var power : float = 100;
static var turnedOn : boolean = false;
var onoffstate = false;
private var drainSpeed : float = 1.3;

    function Update () {
     if (Input.GetKeyDown("f")) {
     	if (power < 0) {
     		onoffstate = false;
     		GetComponent.<Light>().intensity = 0.0;
    	 }

     		if (GetComponent.<Light>().intensity == 0.35){
     			onoffstate = false;
     			GetComponent.<Light>().intensity = 0.0;
     		}
     		if (GetComponent.<Light>().intensity == 0.0) {
     			GetComponent.<Light>().intensity = 0.35;
     			onoffstate = true;
     		
     	}

     }
     if (onoffstate == true){
     	if (power > 0){
     		power -= drainSpeed*Time.deltaTime;
     	}
     	
     }




 }

i also want it to display some battery textures ive made every 33% charge i dont know how to do that and im unsure why my current script doesnt work, does anyone know how to help?

[N1warhead]

You could very easily do it this way. (this is in C#) but should be very simple to convert.
Please mark as correct if this works.

	void Update(){
		if (Input.GetKeyDown (KeyCode.F)) {
			// if light is OFF - turn it on. else turn it off.
			if (!flashLightObject.activeSelf) {
				flashLightObject.SetActive (true);
			} else {
				flashLightObject.SetActive (false);
			}
		}

		// If the Light is ON drain the battery. (Might want to do it with some sort of timer), other wise might
		// Fly through very fast.
		if(flashLightObject.activeSelf){
			if (power > 0) {
				power -= drainSpeed * Time.deltaTime;
			}
		}

		// Display texture. (Might want to make it where it does run every frame though).
		if (power > 0 && power < 20) {
			// Display Texture (Low Battery)
		} else if (power > 20 && power < 50) {
			//Display Texture (Medium battery)
		}else if(power > 50 && power <= 100){
			// Display Texture. (Full Charge).
		}

	}