function Core_IsCompatibleBrowser() {
    var sAgent = navigator.userAgent.toLowerCase() ;
    
    // Internet Explorer 5.5+
    if ( /*@cc_on!@*/false && sAgent.indexOf("mac") == -1 ) {
        var sBrowserVersion = navigator.appVersion.match(/MSIE (.\..)/)[1] ;
        return ( sBrowserVersion >= 7.0 ) ;
    }
    
    // Gecko (Opera 9 tries to behave like Gecko at this point).
    if (navigator.product == "Gecko" && navigator.productSub >= 20030210 && !(typeof(opera) == 'object' && opera.postError)) {
        return true;
    }

    // Opera 9.50+
    if (window.opera && window.opera.version && parseFloat(window.opera.version()) >= 9.5) {
        return true;
    }
    
    // Adobe AIR
    // Checked before Safari because AIR have the WebKit rich text editor
    // features from Safari 3.0.4, but the version reported is 420.
    if (sAgent.indexOf(' adobeair/') != -1) {
        return (sAgent.match(/ adobeair\/(\d+)/)[1] >= 1); // Build must be at least v1
    }
    
    // Safari 3+
    if (sAgent.indexOf(' applewebkit/') != -1) {
        return (sAgent.match(/ applewebkit\/(\d+)/)[1] >= 522); // Build must be at least 522 (v3)
    }
    
    return false ;
}
if (!Core_IsCompatibleBrowser()) {
    var conf = getCookie( 'nocompatible_browser' );
    if (conf != 'still') {
        window.location = '/nocompatible_browser/';
    }
}