//

var agent = navigator.userAgent;

var appve = navigator.appVersion;

var appna = navigator.appName;

var userOs = null;

var browser = null;

var version = null;

var cssSrc = null;

//JUDGE_OS

if( agent.indexOf('Win') != -1 ){

	userOs = "Win";

}

else if( agent.indexOf('Mac') != -1 ){

	userOs = "Mac";

}

else{

	userOs = "other";

}

//JUDGE_BROWSER

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 );

}

// STYLESHEET

var cssSrc ;

if ( userOs == "Mac" ){

	cssSrc = '<link rel="stylesheet" type="text/css" href="/css/fsize_mac.css">';

}

else if ( userOs == "Win" && browser == "NN" ){

	cssSrc = '<link rel="stylesheet" type="text/css" href="/css/fsize_win_nn.css">';

}

else if ( userOs == "Win" && browser == "MSIE" ){

	cssSrc = '<link rel="stylesheet" type="text/css" href="/css/fsize_win_ie.css">';

}

else{

	cssSrc = '<link rel="stylesheet" type="text/css" href="/css/fsize_win_other.css">';

}

document.write( cssSrc ) ;