If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Javelin is the adrenaline pumping sports game placing you in the role of an esteemed Javelin thrower in the FOG Olympics Decathlon event. You get 5 rounds of 3 throws to try and beat your opponent. Its not easy to master the art of the javelin so you might need a few goes to get a high score. A tip is to make sure you click in the green areas of the power bars.
Click the space bar to select your power, angle and run up speed to throw the javelin as far as you can.