function printStyleSheet( dir )
{
	var MAC_IE4_SRC = "mac_ie.css" ;
	var MAC_IE5_SRC = "mac_ie.css" ;
	var MAC_NN4_SRC = "mac_nn.css" ;
	var MAC_NN6_SRC = "mac_nn.css" ;
	var MAC_SAFARI_SRC = "mac_saf.css" ;

	var WIN_IE4_SRC = "win_ie.css" ;
	var WIN_IE5_SRC = "win_ie.css" ;
	var WIN_NN4_SRC = "win_nn4.css" ;
	var WIN_NN6_SRC = "win_ie.css" ;

	// ブラウザ情報を変数に格納
	var os      = getOsName( ) ;
	var browser = getBrowserName( ) ;
	var version = getBrowserVersion( ).charAt( 0 ) ;

	var cssSrc = null ;

	if ( os == "Windows" )
	{
		if ( browser == "Explorer" )
		{
			if ( version == 4 )
			{
				cssSrc = WIN_IE4_SRC ;
			}
			else if ( version >= 5 )
			{
				cssSrc = WIN_IE5_SRC ;
			}
		}
		else if ( browser == "Netscape" )
		{
			if ( version == 4 )
			{
				cssSrc = WIN_NN4_SRC ;
			}
			else if ( version >= 5 )
			{
				cssSrc = WIN_NN6_SRC ;
			}
		}
	}
	else if ( os == "MacOS" )
	{
		if ( browser == "Explorer" )
		{
			if ( version == 4 )
			{
				cssSrc = MAC_IE4_SRC ;
			}
			else if ( version >= 5 )
			{
				cssSrc = MAC_IE5_SRC ;
			}
		}
		else if ( browser == "Netscape" )
		{
			if ( version == 4 )
			{
				cssSrc = MAC_NN4_SRC ;
			}
			else if ( version >= 5 )
			{
				cssSrc = MAC_NN6_SRC ;
			}
		}
		else (browser == "Safari" )
		{
			cssSrc = MAC_SAFARI_SRC ;
		}
	}

	// スタイルシートの書き出し
	if ( cssSrc )
	{
		document.open( ) ;
		document.write( '<LINK REL="stylesheet" TYPE="text/css" HREF="' + dir + cssSrc + '">' ) ;
		document.close( ) ;
	}
}