var appv=navigator.appVersion;
cssos=0;
if(appv.indexOf('Mac')!=-1){
cssos=1;
}
if(cssos==1){
document.write('<link rel="stylesheet" type="text/css" href="./common/mac.css">');
}
if(cssos!=1){
document.write('<link rel="stylesheet" type="text/css" href="./common/win.css">');
}