Win    = (navigator.appVersion.indexOf('Win',0) != -1);
Mac    = (navigator.appVersion.indexOf('Mac',0) != -1);
MacOSX = (navigator.appVersion.indexOf("Mac OS X",0) != -1);
Unix   = (navigator.appVersion.indexOf('X11',0) != -1);

IE      = (navigator.appName == "Microsoft Internet Explorer");
NS      = (navigator.appName == "Netscape")
Mozzira = (navigator.appName.indexOf("Gecko") != -1);
Firefox = (navigator.appName.indexOf("Firefox") != -1);
Safari  = (navigator.appVersion.indexOf("Safari",0) != -1);
iCab    = (navigator.appVersion.indexOf("iCab",0) != -1);
Opera   = (navigator.appVersion.indexOf("Opera",0) != -1);
NS6     = (navigator.appName.indexOf("Netscape6") != -1);

CSS = (Win && Opera)?"wop":(Win && IE)?"wie":((Win && NS)?"wns":(((Mac || MacOSX) && IE)?"mie":(((Mac || MacOSX) && NS)?"mns":"wie")));

document.write('<link rel=\"stylesheet\" href=\"/css/' + CSS + '.css\" type=\"text/css\">');