Make Search Results only return data from posts.

Hi, I have a search option on my page but I want it to old return information from posts. I don’t want it bringing up data from my pages.

`<form method=”get” action=”<?php echo $PHP_SELF; ?>”>

<input type=”text” name=”s” id=”search” size=”40″ />

<input type=”submit” name=”submit” value=”<?php _e(‘Search’); ?>” />

</form>`

That’s my code and my site is https://www.vandalizedmusic.com if you need it. Any help would be greatly appreciated.

Thanks,
Tristan