moving a ball when touch

function OnMouseDown() 
{
    //for(i=1; i<=touch; ++i)
    while(Vector3.Distance(transform.position,nextPos[i+1]) >1)
    {
        if(transform.position.x - nextPos[i+1].x >0 )
        {
            transform.position.x-= Time.deltaTime * 0.1;
        }
        else
        {
            transform.position.x+= Time.deltaTime * 0.1;
        }
        if(transform.position.z - nextPos[i+1].z >0 )
        {
            transform.position.z-= Time.deltaTime * 0.1;
        }
        else
        {
            transform.position.z+= Time.deltaTime * 0.1;
        }
    }
    i++;
}

plz can any one say is this correct code to move object like a ball into certian position when click on that object???