<!--var agent = navigator.userAgent ;var appve = navigator.appVersion ;var appna = navigator.appName ;var userOs	= null ;var browser = null ;var version = null ;if ( agent.indexOf('Win') != -1 ){	userOs = "Win" ;}	else if ( agent.indexOf('Mac') != -1 ){	userOs = "Mac" ;}else{	userOs = "other" ;}if ( appna == "Microsoft Internet Explorer" ){	browser = "MSIE" ;	version = agent.substring((agent.indexOf('MSIE') + 5), (agent.indexOf('MSIE') + 8)) ;	}else if ( appna == "Netscape" ){	browser = "NN" ;	version = appve.substring( 0,3 ) ;}var macUrl, winUrl, cssSrc ;macUrl = "css/mac_ie.css" ;macNN = "css/mac_nn.css" ;winUrl = "css/win_ie.css" ;winNN = "css/win_nn.css" ;if ( userOs == "Mac" && ( browser == "MSIE") ){	cssSrc = '<link rel="stylesheet" type="text/css" href="' + macUrl + '">' ;}else if ( userOs == "Win" && ( browser == "MSIE") ){	cssSrc = '<link rel="stylesheet" type="text/css" href="' + winUrl + '">' ;}else if ( userOs == "Mac" && ( browser == "NN") ){	cssSrc = '<link rel="stylesheet" type="text/css" href="' + macNN + '">' ;}else if ( userOs == "Win" && ( browser == "NN") ){	cssSrc = '<link rel="stylesheet" type="text/css" href="' + winNN + '">' ;}// 書き出し用	document.write( cssSrc ) ;// -->