var css_win_ie   = "w00.css";
var css_win_ns   = "w10.css";
var css_mac_ie   = "m00.css";
var css_mac_ie_5 = "m05.css";
var css_mac_ns   = "m10.css";
var css_other    = "other.css";
var usecss       = "";

if(navigator.userAgent.indexOf("Win")>=0) {

	if(navigator.appName.indexOf("Microsoft")>=0)
		usecss=css_win_ie;

	else if(navigator.appName.indexOf("Netscape")>=0)
		usecss=css_win_ns;
}
else if(navigator.userAgent.indexOf("Mac")>=0) {
	if(navigator.appName.indexOf("Microsoft")>=0) {
		if(navigator.appVersion.indexOf("MSIE 5")>=0) {
			usecss=css_mac_ie_5;
		     }
		else {
			usecss=css_mac_ie;
		     }

	}
	else if(navigator.appName.indexOf("Netscape")>=0) {
		usecss=css_mac_ns;
	      }
}
else  
	usecss=css_other;

document.write("<link rel='stylesheet' href='css/"+usecss+"' type='text/css'>");