if(navigator.userAgent.indexOf("Mac")!=-1){
if(navigator.appName=="Microsoft Internet Explorer"){
	document.write('<link rel="stylesheet" type="text/css" href="css/mac.css">');
}
else if((navigator.appName=="Netscape")&&(parseInt(navigator.appVersion)<=4)){
	document.write('<link rel="stylesheet" type="text/css" href="css/mac_nn.css">');
}
else if(navigator.userAgent.indexOf("Safari")!=-1){
	document.write('<link rel="stylesheet" type="text/css" href="css/mac_nn.css">');
}else if(navigator.userAgent.indexOf("Gecko")!=-1){
	document.write('<link rel="stylesheet" type="text/css" href="css/mac_nn.css">');
}
}

else if(navigator.userAgent.indexOf("Win")!=-1){
if(navigator.appName=="Microsoft Internet Explorer"){
	document.write('<link rel="stylesheet" type="text/css" href="css/win.css">');
}
else if((navigator.appName=="Netscape")&&(parseInt(navigator.appVersion)<=4)){
	document.write('<link rel="stylesheet" type="text/css" href="css/other.css">');
}
else if(navigator.userAgent.indexOf("Gecko")!=-1){
	document.write('<link rel="stylesheet" type="text/css" href="css/win_nn.css">');
}
}

else{
	document.write('<link rel="stylesheet" type="text/css" href="css/other.css">');
}