Třídění pole dle české abecedy

var localeCompare = (function() {
	var chars = "aáäàãâbcćčdďeéěëèêfghiíïìîjklĺľmnńňñoóôòõöőpqrŕřsśštťuúùůüũûvwxyýzźž" ;
	chars = chars.replace(/./g, function($0) { return $0 + $0.toUpperCase()});
	var sorted = chars.split("").sort().join("");
	var map = {};

	for (var i = 0; i < chars.length; ++i)
		if (chars.charAt(i) != sorted.charAt(i))
			map[chars.charAt(i)] = sorted.charAt(i);

	return function(a, b) {
		for (var i = 0, len = Math.min(a.length, b.length); i < len; ++i) {
			var c, c1 = a.charAt(i), c2 = b.charAt(i);
	
			if (c = map[c1]) c1 = c;
			if (c = map[c2]) c2 = c;
			if (c1 < c2) return -1;
			if (c1 > c2) return 1;
		}
	
		return a.length != b.length ? a.length - b.length : 0;
	}
})();

data.sort(function(a, b) { return localeCompare(a[0], b[0]); });

function sortByChars(arr) {
var out = new Array();
var chars = ' aáäaaâbcćčdďeéěëeefghiíiiîjklĺľmnńňnoóôooöőpqrŕřsśštťuúuůüuuvwxyýzźž0123456789';
for (var k = 0; k < arr.length; k++) {
var index = '';
for (var j = 0; j < arr[k][0].length; j++) {
var i = chars.toUpperCase().indexOf(arr[k][0].substr(j,1).toUpperCase())
if (i < 10) {index = index+'0'+i;}
else {index = index+i;}
}
out[k] = arr[k].concat(index);
}
return out;
}

function compare(a, b) {
if (a < b) {return -1;}
if (a > b) {return 1;}
return 0;
}

data = sortByChars(data);
data.sort(function(a,b) {return compare(a[2], b[2]);}); 

function sortByChars(arr) {
  var out = new Array();
  var chars = ' aáäaaâbcćčdďeéěëeefghhiíiiîjklĺľmnńňnoóôooöőpqrŕřsśštťuúuůüuuvwxyýzźž0123456789';
  for (var k = 0; k < arr.length; k++) {
    var index = '';
    for (var j = 0; j < arr[k][0].length; j++) {    
      var i = chars.toUpperCase().indexOf(arr[k][0].substr(j,1).toUpperCase())    
      if (j+1 < arr[k][0].length) {if (arr[k][0].substr(j,1) == 'c' && arr[k][0].substr(j+1,1) == 'h') {i = 22;}}
      if (i < 10) {index = index+'0'+i;}
      else {index = index+i;}   
    }
    out[k] = arr[k].concat(index);
  }
  return out;
}

var _chars = ' aáäaaâbcćčdďeéěëeefghhiíiiîjklĺľmnńňnoóôooöőpqrŕřsśštťuúuůüuuvwxyýzźž0123456789'.toUpperCase();

function czechSort(arr) {
	var map = {};
	var index;

	for (var i = 0, item; i < arr.length; i++) { //pro každý prvek
		index = []; //reset indexu
		item = arr[i];
		item.replace("/\s+/g", " ");
		for (var j = 0, ch, pos; j < item.length; j++) {
			ch = item.substr(j, 1).toUpperCase();
			//test na ch
			if (j + 1 < item.length && ch == "C" && item.substr(j + 1, 1).toUpperCase() == "H") {
				pos = 22; //ch je na pozici 22
				j++;
			} else { //zjistíme správnou pozici písmene
				pos = _chars.indexOf(ch);
			}

			index.push(pos < 10? "0" + pos : pos); //potřebujeme 0 prefix
		}
		//uložíme index prvku do mapy
		map[item] = index.join("");
	}

	//nyní sortujeme podle nalezených indexů
	return arr.sort(function(a, b) {
		//získáme indexy
		var a2 = map[a];
		var b2 = map[b];

		if (a2 > b2) { return 1;}
		if (a2 < b2) { return -1;}
		return 0;
	});
}