Disable Gui Buttons while moving finger

Hi,
I'm doing a vertical menu with few buttons (like scrabble app). Player can move his finger on the screen to scroll the all menu.

I want to disable all click if the player is moving his finger, to avoid missclik.

Thanks

My script to catch finger moving

Code (JavaScript):

1. if (Input.touchCount > 0 && Input.GetTouch(0).phase == TouchPhase.Moved) {
2.             var touchDeltaPosition:Vector2 = Input.GetTouch(0).deltaPosition;
3.             if(ynew<0.14*variable_global.scrhgt){
4.                 ynew = ynew-touchDeltaPosition.y;
5.             }
6.         }