Card Magic Trick Penetrating Glass

You've seen people play tricks with cards that can penetrate the glass, then congratulations you've been fooled by that person. And for those who have never seen but wondered what kind of magic of the games. Okay I'll tell you briefly.
The way the game:

    Magician shows a card, let's say 10 hearts. Then incorporated into the glass held above his left palm. Glass handkerchief. A moment later, pulled a handkerchief, and a surprising 10 card heart was gone from the glass. Soon the glass removed, it turned out that the card underneath the glass or above the palm of the hand that had held the glass. So the card had penetrated the glass base.


Secret:
Magicians were actually used 2 exact same card, for example I demonstrated was 10 hati.Satu folded cards glass hidden under the left hand held. The other card was given a fine threads (special threads) you reply this thread hard to find my place there are many. Okay go, end of the string is sticking out over the rim of his glass when the card is inserted into the glass.
When the handkerchief is spread over the glass, while reaching for the handkerchief pulled end of the string so that the cards come in a glass lift by itself without looking audience. Input directly handkerchief into his pocket. Audience's attention was drawn to the empty glass, immediately used to lift the glass slowly, as he straightened his left hand a folded card.
The audience cheered in awe of you .....