/*

 * $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();