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clientInformationとnavigator

clientInformation

appCodeName, appName, appMinorVersion, cpuClass, platform, plugins, opsProfile, userProfile, systemLanguage, userLanguage, appVersion, userAgent, onLine, cookieEnabled, mimeTypes, 

navigator

appCodeName, appName, appMinorVersion, cpuClass, platform, plugins, opsProfile, userProfile, systemLanguage, userLanguage, appVersion, userAgent, onLine, cookieEnabled, mimeTypes, 
appCodeName Mozilla
appName Microsoft Internet Explorer
appMinorVersion beta 2
cpuClass x86
platform Win32
plugins [object HTMLPluginsCollection]
opsProfile null
userProfile null
systemLanguage ja
userLanguage ja
appVersion 4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727)
userAgent Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727)
onLine true
cookieEnabled true
mimeTypes undefined

う〜ん

if(window.navigator == window.clientInformatio){
    alert("おなじ"); // 同じなのね
};