Mobile script using Mouse input instead of touch input

I'm making a game where I need to move the "player" based on where the person is touching the screen. I devised a script to do just that, but it is not responding to "touches". Actually the script only works if I add an Input listener for a "Mouse", not a "Touch" for mobile device. The code looks like this:

Code (JavaScript):

1.     if(platform == RuntimePlatform.Android || platform == RuntimePlatform.IPhonePlayer){
2.        if(Input.touchCount > 0) {
3.        
4.            
5.          if(Input.GetTouch(0).phase == TouchPhase.Began){
6.          left = true;
7.           checkTouch(Input.GetTouch(0).position);
8.          
9.        
10.          }
11.          if (Input.GetTouch(0).phase == TouchPhase.Ended) {
12.          left = false;
13.          gameObject.GetComponent(Rigidbody2D).velocity = Vector2(0,gameObject.GetComponent(Rigidbody2D).velocity.y);
14.        gameObject.GetComponent(Rigidbody2D).angularVelocity = 0;
15.          }
16.          }
17.     }
18.