Remove captcha inside reply mode

Hi,

I use captcha in my Kusabax boards to stop flood, but I want to show this only in create a new thread mode, not in reply mode.

I need the code to change this option and show captcha only when someone want to open a new thread, not inside the reply mode thread.

This is my code but doesn't work:

http://pastebin.com/5SxbQymS

Thanks.

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>IMPLYING LE SHALOM!!! XDDDD
>EGIN MUH GRO!!!!