if(navigator.appName.charAt(0)=="N"){
	if(navigator.appVersion.charAt(0)==6) //NN6
		ua ="NS6"
	if(navigator.appVersion.charAt(0)==4) //NN4
		ua ="NS4";
}
if(navigator.appName.charAt(0)=="M"){
	if(navigator.appVersion.charAt(0)==4){
		if(navigator.appVersion.indexOf("MSIE 6") != -1) //IE6
			ua ="IE6";
		else if(navigator.appVersion.indexOf("MSIE 5") != -1) //IE5
			ua ="IE5";
		else
			ua ="IE4"; //IE4
	}
}

if(navigator.platform.indexOf("Mac") != -1) //mac
	pf="MAC";
if(navigator.platform.indexOf("Win") != -1) //win
	pf="WIN";


if( (pf=="MAC" && ua=="NS4") || (pf=="MAC" && ua=="IE4") ){
	document.write("<link rel=\"stylesheet\" type=\"text/css\" href=\"t_mac.css\">");
}
else{
	document.write("<link rel=\"stylesheet\" type=\"text/css\" href=\"t.css\">");
}