please I need help with my mail() the code is not executed

HI
Shror
i did't get u ,but may i know would u send the headers for it..
if not send the headers,and
still u did't
i will send u code ok

I have used in another pages the following code and its executed fine:
http://www.beachtoursegypt.com/123.php

if(mail('','',''))
{
// confirm
}
echo "confirm";
else
{
// problem
echo "error";
}

and the output was error but really i don't know how to fix this
problem may be i need to add php.ini file to enable the mail() on my
hosting account or what but the other problem is that i dont know how
to write the correct syntax for the php.ini

please help me in this terrible problem