<?php
/***************************************************************************
 *	feedRollImg.php
 *
 *	begin		: October 2006
 *	version		: 20 October 2006
 *	copyright	: (C) 2006 grandolini.net
 *
 *	Feed rolling images through an XMLHTTP response script
 *	Images MUST be placed in: [root]/skins/[skin dir]/img/rollimg
 *	Thumb must be already present and their filenames must start with:
 *	'thumb_'.
 *
 ***************************************************************************/
session_start();
if(!isset($_SESSION[last_rollimg]) || $_SESSION[last_rollimg]==0) { $_SESSION[last_rollimg]=-1; }
if(!file_exists($_SERVER[DOCUMENT_ROOT].$_SESSION[misc][folder].'skins/'.$_GET[skid].'/img/rollimg/index.html')) { die; }
#
$_ROOT=$_SERVER[DOCUMENT_ROOT].$_SESSION[misc][folder].'skins/'.$_GET[skid].'/img/rollimg';
$RRN=1;
#
if($handle=opendir($_ROOT))
{
	while(($file=readdir($handle))!==false)
	{
		if(is_file($_ROOT.'/'.$file) && substr($file,0,6)=='thumb_')
		{
			if($RRN>$_SESSION[last_rollimg])
			{
				$_SESSION[last_rollimg]=$RRN;
				#
				header("Cache-Control: no-cache, must-revalidate");
				header('Expires: Fri, 31 Dec 1999 23:59:59 GMT');
				header('Content-type: text/xml');
				echo '<rollingImages>'
					.'<rrn>'.$_SESSION[last_rollimg].'</rrn>'
					.'<rollimg>'.htmlspecialchars(substr($file,6)).'</rollimg>'
					.'</rollingImages>';
				closedir($handle);
				die;
				#-:-:-:-:-:-:-:-| natural end
			}
			$RRN++;
		}
	}
	closedir($handle);
	#
	#	all images were shown, reset the counter and call itself to feed the first file again
	#
	$_SESSION[last_rollimg]=0;
	header('Location: '.$_SERVER[PHP_SELF].'?'.$_SERVER[QUERY_STRING]);
}
?>