//error
function SymError()
{
  return true;
}
//mac
if ((navigator.appVersion.indexOf("Mac") != -1)) {
document.write("<LINK REL=stylesheet HREF=\"/css/style-mac.css\" TYPE=\"text/css\">"); }
else {
document.write("<LINK REL=stylesheet HREF=\"/css/style.css\" TYPE=\"text/css\">"); }