/*
 * $Log: ua.js,v $
 * Revision 1.9  2002/07/22 14:06:21  bc6ix
 * fix license path, change version reporting to use 2 digits for each level
 *
 * Revision 1.8  2002/07/07 08:23:07  bc6ix
 * fix line endings
 *
 * Revision 1.7  2002/05/14 16:52:52  bc6ix
 * use CVS Log for revision history
 *
 *
 */

/* ***** BEGIN LICENSE BLOCK *****
 * Licensed under Version: MPL 1.1/GPL 2.0/LGPL 2.1
 * Full Terms at http://bclary.com/lib/js/license/mpl-tri-license.txt
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Netscape code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2001
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s): Bob Clary <bclary@netscape.com>
 *
 * ***** END LICENSE BLOCK ***** */

function xbDetectBrowser() {
         var oldOnError = window.onerror;
         var element = null;
         
         window.onerror = null;
         
         // work around bug in xpcdom Mozilla 0.9.1
         window.saveNavigator = window.navigator;
         
         navigator.OS    = '';
         navigator.version  = parseFloat(navigator.appVersion);
         navigator.org    = '';
         navigator.family  = '';
         
         var platform;
         if (typeof(window.navigator.platform) != 'undefined') {
            platform = window.navigator.platform.toLowerCase();
            if (platform.indexOf('win') != -1)
               navigator.OS = 'win';
            else if (platform.indexOf('mac') != -1)
               navigator.OS = 'mac';
            else if (platform.indexOf('unix') != -1 || platform.indexOf('linux') != -1 || platform.indexOf('sun') != -1)
               navigator.OS = 'nix';
         }
         
         var i = 0;
         var ua = window.navigator.userAgent.toLowerCase();
         
         if (ua.indexOf('safari') != -1) {
            i = ua.indexOf('safari');
            navigator.family = 'safari';
            navigator.org = 'safari';
            navigator.version = parseFloat('0' + ua.substr(i+7), 10);
         } else if (ua.indexOf('opera') != -1) {
            i = ua.indexOf('opera');
            navigator.family  = 'opera';
            navigator.org    = 'opera';
            navigator.version  = parseFloat('0' + ua.substr(i+6), 10);
         } else if ((i = ua.indexOf('msie')) != -1) {
            navigator.org    = 'microsoft';
            navigator.version  = parseFloat('0' + ua.substr(i+5), 10);
            
            if (navigator.version < 4)
               navigator.family = 'ie3';
            else
               navigator.family = 'ie4'
         } else if (ua.indexOf('gecko') != -1) {
            navigator.family = 'gecko';
            var rvStart = ua.indexOf('rv:');
            var rvEnd   = ua.indexOf(')', rvStart);
            var rv      = ua.substring(rvStart+3, rvEnd);
            var rvParts = rv.split('.');
            var rvValue = 0;
            var exp     = 1;
            
            for (var i = 0; i < rvParts.length; i++) {
               var val = parseInt(rvParts[i]);
               rvValue += val / exp;
               exp *= 100;
            }
            navigator.version = rvValue;
            
            if (ua.indexOf('netscape') != -1)
               navigator.org = 'netscape';
            else if (ua.indexOf('compuserve') != -1)
               navigator.org = 'compuserve';
            else
               navigator.org = 'mozilla';
         } else if ((ua.indexOf('mozilla') !=-1) && (ua.indexOf('spoofer')==-1) && (ua.indexOf('compatible') == -1) && (ua.indexOf('opera')==-1)&& (ua.indexOf('webtv')==-1) && (ua.indexOf('hotjava')==-1)) {
            var is_major = parseFloat(navigator.appVersion);
            
            if (is_major < 4)
               navigator.version = is_major;
            else {
               i = ua.lastIndexOf('/')
               navigator.version = parseFloat('0' + ua.substr(i+1), 10);
            }
            navigator.org = 'netscape';
            navigator.family = 'nn' + parseInt(navigator.appVersion);
         } else if ((i = ua.indexOf('aol')) != -1 ) {
           // aol
            navigator.family  = 'aol';
            navigator.org    = 'aol';
            navigator.version  = parseFloat('0' + ua.substr(i+4), 10);
         } else if ((i = ua.indexOf('hotjava')) != -1 ) {
            // hotjava
            navigator.family  = 'hotjava';
            navigator.org    = 'sun';
            navigator.version  = parseFloat(navigator.appVersion);
         }
        
         window.onerror = oldOnError;
}

xbDetectBrowser();