I tried opening your link - there is like a million ads, but no game. Seriously, dude, your page looks really dodgy, I hope I didn't get any viruses!
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If you want your bullet to be affected by the wind, simply do this:
> On every tick
-> BulletSprite move at angle windAngle, distance: dt*windSpeed
Thanks Dop for checking it. Actually I am not so good in uploading files or hosting so my friend has done this hosting on his end and gave me this link to play the game. When you checked it, link was broken. Now it up and working fine. Also, my friend says page is fully safe so nothing to worry. The suggestion you told me I couldn't get it. Might be if you now play the game then you can understand my requirement. Apologies for the trouble if you faced any.