A problem with include code

I'm stuck with this problem and don't know what I'm doing wrong


in html page , main page :

<?php include('headbutton.php'); ?>

<?php include('c_container_files/c_beerpong.php'); ?>	

<?php include('down_menu.php'); ?>

Code (markup):

and then c_beerpong.php >>

<!--------------------------------- start container ------------------------------------>
<div id="xellbox">

<div id="xellbpost">

<?php include('container_files/navigation_flashgames.php'); ?>	

<?php include('container_files/top_ads.php'); ?>	

<!--------------------------------- start of postblock ------------------------------------>
<?php include('flash-games_pb/beerpong.php'); ?>	
<!--------------------------------- end of postblock ------------------------------------>

<?php include('container_files/cool_links.php'); ?>	

</div>

</div>
<!--------------------------------- end container ------------------------------------>

Code (markup):

beerpong.php page doesn't matter now , it works ok when all others include code are in root ....

I don't get it , why is path invalid , what I miss here ?

or what is valid path for this case ?

tnx

 

If include codes are in .html file it doesn't work, you must save it in .php file

 

try to use relative path..

 

and how relative path looks like ? Sry , I don't too much about php codes