when u beat the temple of ice how do u have to beat gleok the two head dragon??

quote http://www.zeldawiki.org/Gleeok

Gleeok reappears in Phantom Hourglass as the boss of the Temple of Ice and guardian of the Azurine Steel. One of his heads is red and the other one is blue. The red fires a ball of flame and the blue shoots a ball of ice.

Link will be standing on a platform with four pegs near each corner. When one of the heads looses a blast at Link, he will need to attach the grappling hook to two pegs diagonally so as the rope launches the blast back at the other dragon's face, cracking it's mask. In addition with these blasts, the two heads will lunge to snap the rope Link ties, while trying to bite Link as well. They can also sink below the water to cause a tremor that will flood Link's platform, as well as cause chunks of ice to fall from the ceiling and crash into Link. Link can tie the grappling hook to two posts and walk along the rope to avoid the ice chunks. Three blasts to both heads will remove their masks.

Both heads will remove two of the four pegs by snapping them with their jaws. Each head will take turns at trying to bite Link, then will charge up for a powered blast. The red dragon head will loose a fiery blast that will scorch Link, as well as leave a trail of fire on the platform. The blue dragon head will loose a blast of ice that will freeze Link on contact. While charging, however, both dragons will be sucking in energy, exposing their tongues. Link can pull the head down by tying one end of the grappling hook to a post, and using it as an anchor on the dragon's head. Once down, Link must slash at the dragon head before it recovers. Repeating this process to both heads will defeat the dragon, and Link will obtain a Heart Container, extra sands for the Phantom Hourglass, and the second of the three pure metals, Azurine.