isLinux=(navigator.appVersion.indexOf("Linux") != -1);

if (isLinux){
document.write("<link href='../style/style_linux.css' type='text/css' rel='styleSheet'>");
}
else if (document.layers){
document.write("<link href='../style/style_navigator.css' type='text/css' rel='styleSheet'>");
}
else {
document.write("<link href='../style/style_explorer.css' type='text/css' rel='styleSheet'>");
}