vector detected;
float U;
float V;
default
{
    touch_start(integer x)
    {
       detected=llDetectedTouchUV(0);
       U=detected.x;
       V=detected.y;
      if((U >= 0.3 || U <= 0.35) && (V >= 0.20 || V <= 0.30))
       {
           llSetAlpha(0.1,ALL_SIDES);
        }
         else if((U >= 0.4 || U <= 0.45) && (V >= 0.20 || V <= 0.30))
       {
           llSetAlpha(0.2,ALL_SIDES);

        }
        else if((U >= 0.5 || U <= 0.55) && (V >= 0.20 || V <= 0.30))
       {
           llSetAlpha(0.3,ALL_SIDES);

        }
        else if((U >= 0.6 || U <= 0.65) && (V >= 0.20 || V <= 0.30))
       {
           llSetAlpha(0.4,ALL_SIDES);

        }
        else if((U >= 0.7 || U <= 0.75) && (V >= 0.20 || V <= 0.30))
       {
           llSetAlpha(0.5,ALL_SIDES);

        }
        else if((U >= 0.8 || U <= 0.85) && (V >= 0.20 || V <= 0.30))
       {
           llSetAlpha(0.6,ALL_SIDES);

        }
        else if((U >= 0.9 || U <= 0.95) && (V >= 0.20 || V <= 0.30))
       {
           llSetAlpha(0.7,ALL_SIDES);

        }
        else if((U >= 1.0 || U <= 1.1) && (V >= 0.20 || V <= 0.30))
       {
           llSetAlpha(0.8,ALL_SIDES);

        }
        else if((U >= 1.15 || U <= 1.20) && (V >= 0.20 || V <= 0.30))
       {
           llSetAlpha(0.9,ALL_SIDES);

        }
        else if((U >= 1.25 || U <= 1.3) && (V >= 0.20 || V <= 0.30))
       {
           llSetAlpha(1.0,ALL_SIDES);

        }

    }
}