// Copyright © 2000 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.
//
// Slight modifications © 2001 bukwa (m.bukowski@onyx.pl) 
//

function its() {
	var n = navigator;
	// string comparisons are much easier if we lowercase everything now.
	// to make indexOf() tests more compact/readable, we prepend a space 
	// to the userAgent string (to get around '-1' indexOf() comparison)
	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.webtv = ua.indexOf('webtv') > 0;
	this.ie = ua.indexOf('msie') > 0;
	this.aol = ua.indexOf('aol') > 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.win2000 = (ua.indexOf('nt 5.0') > 0 && ua.indexOf('win') > 0);	
	this.winnt = (ua.indexOf('nt 5.0') == 0 && ua.indexOf('nt') > 0 && ua.indexOf('win') > 0);

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

	this.sun = ua.indexOf('sunos') > 0;
	this.irix = ua.indexOf('irix') > 0;
	this.hpux = ua.indexOf('hpux') > 0;
	this.aix = ua.indexOf('aix') > 0;
	this.dec = (ua.indexOf('dec') > 0 || ua.indexOf('alpha') > 0 || ua.indexOf('osf1') > 0 || ua.indexOf('ultrix') > 0);
	this.sco = (ua.indexOf('sco') > 0 || ua.indexOf('unix_sv') > 0);
	this.vms = (ua.indexOf('vax') > 0 || ua.indexOf('openvms') > 0);
	this.linux = ua.indexOf('linux') > 0;
	this.sinix = ua.indexOf('sinix') > 0;
	this.reliant = ua.indexOf('reliantunix') > 0;
	this.freebsd = ua.indexOf('freebsd') > 0;
	this.openbsd = ua.indexOf('openbsd') > 0;
	this.netbsd = ua.indexOf('netbsd') > 0;
	this.bsd = ua.indexOf('bsd') > 0;
	this.unixware = ua.indexOf('unix_system_v') > 0;
	this.mpras = ua.indexOf('ncr') > 0;

	this.unix = ua.indexOf("x11") > 0;

	// versions
	if (this.ie){ // różne wersje IE
		this.ie4 = (ua.indexOf("msie 4")!=-1);	
		this.ie5up = (ua.indexOf("msie 5")!=-1);
		this.ie55 = (ua.indexOf("msie 5.5")!=-1);
		this.ie6 = (ua.indexOf("msie 6")!=-1);
	}	
	
	
	// 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;
}

its = new its();

// KODOWANIE
var kodowanie = "iso";

if (its.win95 || its.win98){
		if (its.ie && !its.ie55) kodowanie = "win";   
}

if (its.win2000 ||
	 its.ie6){
	kodowanie = "iso";
}  


// funkcja konwerująca stronę kodową
function iso2win(str)
{
	var from = new Array("±","¶","Ľ","ˇ","¦","¬");
	var to = new Array("ą","ś","ź","Ą","Ś","Ź");

	if (kodowanie == "win"){
    	for(i=0; i<to.length; i++)
	    str = str.replace(new RegExp(from[i],"g"),to[i]);
    }
    return str;
}