// Copyright © 2000-2002 by Apple Computer, Inc., All Rights Reserved.
//
// You may incorporate this Apple sample code into your own code
// without restriction. This Apple sample code has been provided "AS IS"
// and the responsibility for its operation is yours. You may redistribute
// this code, but you are not permitted to redistribute it as
// "Apple sample code" after having made changes.

function its() {
	var n = navigator;
	var ua = ' ' + n.userAgent.toLowerCase();
	var pl = n.platform.toLowerCase(); // not supported in NS3.0
	var an = n.appName.toLowerCase();

	// browser version
	this.version = n.appVersion;
  
	this.nn = ua.indexOf('mozilla') > 0;

	// 'compatible' versions of mozilla aren't navigator
	if(ua.indexOf('compatible') > 0) {
		this.nn = false;
	}

	this.opera = ua.indexOf('opera') > 0;
	this.ie = ua.indexOf('msie') > 0;
	this.omniweb = ua.indexOf('omniweb') > 0;
  
	this.major = parseInt( this.version );
	this.minor = parseFloat( this.version );
  
	// platform
	this.mac = ua.indexOf('mac') > 0;
	this.mac68k = (ua.indexOf('68k') > 0 || ua.indexOf('68000') > 0);
	this.macppc = (ua.indexOf('ppc') > 0 || ua.indexOf('powerpc') > 0);

	this.win = ua.indexOf('win') > 0;
	this.win16 = (ua.indexOf('16') > 0 && ua.indexOf('win') > 0);
	this.win31 = this.win16;
	this.win95 = (ua.indexOf('95') > 0 && ua.indexOf('win') > 0);
	this.win98 = (ua.indexOf('98') > 0 && ua.indexOf('win') > 0);
	this.winme = (ua.indexOf('win 9x 4.90') > 0 && ua.indexOf('win') > 0);
	this.winnt = (ua.indexOf('nt') > 0 && ua.indexOf('win') > 0);
	this.win2k = (ua.indexOf('nt 5') > 0 && ua.indexOf('win') > 0);

	this.os2 = ua.indexOf('os/2') > 0;

	// workarounds
	// - IE5/Mac reports itself as version 4.0
	if(this.ie && this.mac) {
		if(ua.indexOf("msie 5")) {
			this.major = 5;
			var actual_index = ua.indexOf("msie 5");
			var actual_major = ua.substring(actual_index + 5, actual_index + 8);
      this.minor = parseFloat(actual_major);
		}
	}
	return this;
}



function browserNaming() {
	its = new its();
		
	// is it a DOM-enabled browser?
	if (!document.getElementById) {
		browserNew = false;
	}
	else {
		browserNew = true;
	}

	// need the name, too
	if (its.opera) {
		browserName = "Opera";
	}
	else if (its.ie) {
		browserName = "IE";
	}
	else {
		browserName = "NS";
	}

	// and the number
	browserNameLong = browserName + its.major;
}