if(navigator.appName=="Microsoft Internet Explorer" && navigator.platform=="Win32"){
document.write('<LINK rel="stylesheet" type="text/css" href="./css/win_ie.css">');
}
if(navigator.appName=="Microsoft Internet Explorer" && navigator.platform=="MacPPC"){
document.write('<LINK rel="stylesheet" type="text/css" href="./css/mac_ie.css">');
}
if(navigator.appName=="Netscape" && navigator.platform=="Win32" && navigator.appVersion.charAt(0)=="4"){
document.write('<LINK rel="stylesheet" type="text/css" href="./css/win_ns4.css">');
}
if(navigator.appName=="Netscape" && navigator.platform=="Win32" && navigator.appVersion.charAt(0)=="5"){
document.write('<LINK rel="stylesheet" type="text/css" href="./css/win_ns5.css">');
}
if(navigator.appName=="Netscape" && navigator.platform=="MacPPC" && navigator.appVersion.charAt(0)=="4"){
document.write('<LINK rel="stylesheet" type="text/css" href="./css/mac_ns4.css">');
}
if(navigator.appName=="Netscape" && navigator.platform=="MacPPC" && navigator.appVersion.charAt(0)=="5"){
document.write('<LINK rel="stylesheet" type="text/css" href="./css/mac_ns5.css">');
}
if(navigator.appName=="Netscape" && navigator.platform=="MacPPC" && navigator.appVersion.charAt(75)=="S"){
document.write('<LINK rel="stylesheet" type="text/css" href="./css/mac_safari.css">');
}