var browser_version	= parseInt(navigator.appVersion);
var browser_type	= navigator.appName;
var nUserAgent		= navigator.userAgent.toLowerCase();
var file			= '';
var is_chrome		= nUserAgent.indexOf('chrome') > -1;
var is_explorer		= nUserAgent.indexOf('msie') > -1;
var is_firefox4		= nUserAgent.indexOf('firefox/4')> -1;
var nAppName		= navigator.appCodeName;
var UA = navigator.userAgent.toLowerCase();
if (UA.indexOf('macintosh')>-1)//get Mac
	{
	if (((nAppName =='Mozilla') && (!is_firefox4))||(is_chrome)){file = 'mac.css';}
	}
else if (UA.indexOf('windows')>-1)//get Win
	{
	if (is_explorer && (browser_version == 4))
		{file='default.css';}
	else if (is_explorer && (browser_version >=5))
		{file ='default_ie9.css';}
	if (is_chrome) 
		{file ='chrome_css.css';}
	else if ((nAppName =='Mozilla') && (is_firefox4))
		{
			if (nUserAgent.indexOf('windows nt 6')>-1)
				{file ='w6_firefox_css.css';}
			else 
				{file ='firefox_css.css';}
		}
	else if ((nAppName =='Mozilla') && (!is_firefox4) && (!is_explorer))
		{file = 'safari.css';}
	}
else							// get the rest
	{
		file = 'default.css';
	}
document.write("<link REL='stylesheet' HREF='/css/"+file+"' TYPE='text/css'>");
//alert("<link REL='stylesheet' HREF='/css/"+file+"' TYPE='text/css'>");