function printStyleSheet( ){	var MAC_IE4_SRC = "./style/mac_ie.css" ;	var MAC_IE5_SRC = "./style/mac_ie.css" ;	var MAC_NN4_SRC = "./style/mac_nn.css" ;	var MAC_NN6_SRC = "./style/mac_nn.css" ;	var WIN_IE4_SRC = "./style/win_ie.css" ;	var WIN_IE5_SRC = "./style/win_ie.css" ;	var WIN_NN4_SRC = "./style/win_nn4.css" ;	var WIN_NN6_SRC = "./style/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 ;			}			if ( version >= 5 )			{				cssSrc = WIN_IE5_SRC ;			}		}		else if ( browser == "Netscape" )		{			if ( version == 4 )			{				cssSrc = WIN_NN4_SRC ;			}			if ( version >= 5 )			{				cssSrc = WIN_NN6_SRC ;			}		}	}	else if ( os == "MacOS" )	{		if ( browser == "Explorer" )		{			if ( version == 4 )			{				cssSrc = MAC_IE4_SRC ;			}			if ( version >= 5 )			{				cssSrc = MAC_IE5_SRC ;			}		}		else if ( browser == "Netscape" )		{			if ( version == 4 )			{				cssSrc = MAC_NN4_SRC ;			}			if ( version >= 5 )			{				cssSrc = MAC_NN6_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="' + cssSrc + '">' ) ;		document.close( ) ;	}}printStyleSheet( ) ;