<?php

function FCKeditor_IsCompatibleBrowser()
{
	global $HTTP_USER_AGENT ;

	if ( !isset( $_SERVER ) ) {
		global $HTTP_SERVER_VARS ;
	    $_SERVER = $HTTP_SERVER_VARS ;
	}
		
	if ( isset( $HTTP_USER_AGENT ) )
		$sAgent = $HTTP_USER_AGENT ;
	else
		$sAgent = $_SERVER['HTTP_USER_AGENT'] ;

	if ( strpos($sAgent, 'MSIE') !== false && strpos($sAgent, 'mac') === false && strpos($sAgent, 'Opera') === false )
	{
		$iVersion = (float)substr($sAgent, strpos($sAgent, 'MSIE') + 5, 3) ;
		return ($iVersion >= 5.5) ;
	}
	else if ( strpos($sAgent, 'Gecko/') !== false )
	{
		$iVersion = (int)substr($sAgent, strpos($sAgent, 'Gecko/') + 6, 8) ;
		return ($iVersion >= 20030210) ;
	}
	else if ( strpos($sAgent, 'Opera/') !== false )
	{
		$fVersion = (float)substr($sAgent, strpos($sAgent, 'Opera/') + 6, 4) ;
		return ($fVersion >= 9.5) ;
	}
	else if ( preg_match( "|AppleWebKit/(\d+)|i", $sAgent, $matches ) )
	{
		$iVersion = $matches[1] ;
		return ( $matches[1] >= 522 ) ;
	}
	else
		return false ;	
}

if ( !function_exists('version_compare') || version_compare( phpversion(), '5', '<' ) )
	include_once( 'fckeditor_php4.php' ) ;
else
	include_once( 'fckeditor_php5.php' ) ;

?>
