function ResultsTable(id, container, editPlayerCallback, editResultCallback) {
	this.id = id;
	this.players = [];
	this.results = [];
	this.store = window.sessionStorage;
	
	if(!editPlayerCallback) {
		editPlayerCallback = this._editPlayerCallback;
	}
	this.editPlayerCallback = editPlayerCallback;
	if(!editResultCallback) {
		editResultCallback = this._editResultCallback;
	}
	this.editResultCallback = editResultCallback;
	
	container.appendChild(this._createTable());
}
ResultsTable.prototype._createTable = function() {
	this.table = document.createElement('table');
	this.table.className = 'results';
	this.thead = document.createElement('thead');
	this.tbody = document.createElement('tbody');
	this.tplayers = document.createElement('tr');
	this.tresults = document.createElement('tr');
	
	this.table.appendChild(this.thead);
	this.table.appendChild(this.tbody);
	this.thead.appendChild(this.tplayers);
	this.thead.appendChild(this.tresults);
	
	return this.table;
};
ResultsTable.prototype.load = function() {
	if(this.store && this.store.getItem(this.id+'_players')) {
		this.players = JSON.parse(this.store.getItem(this.id+'_players'));
		this.results = JSON.parse(this.store.getItem(this.id+'_results'));
		this.refresh();
	}
};
ResultsTable.prototype.save = function() {
	if(this.store) {
		this.store.setItem(this.id+'_players', JSON.stringify(this.players));
		this.store.setItem(this.id+'_results', JSON.stringify(this.results));
	}
};
ResultsTable.prototype.clear = function() {
	this.players = [];
	this.results = [];
	this.refresh();
	if(this.store) {
		this.store.removeItem(this.id+'_players');
		this.store.removeItem(this.id+'_results');
	}
};
ResultsTable.prototype.addPlayer = function(name) {
	var results = (this.results[0] && this.results[0].length) || 0;
	results = new Array(results);
	for(var i = 0; i < results.length; i++) {
		results[i] = 'X';
	}
	
	this.players.push(name);
	this.results.push(results);
	this.refresh();
};
ResultsTable.prototype._createPlayerTh = function(name) {
	var th = document.createElement('th');
	th.innerText = name;
	th.onclick = function(self) { return function() {
		var originalName = th.innerText;
		self.editPlayerCallback(
			originalName,
			function (result) {
				if(result == null) {
					return;
				}
				
				if(result) {
					self.players[self.players.indexOf(originalName)] = result;
				}
				else
				{
					var index = self.players.indexOf(originalName);
					self.players.splice(index, 1);
					self.results.splice(index, 1);
				}
				
				self.refresh();
			}
		);
	} }(this);
	return th;
};
ResultsTable.prototype.addResult = function(result) {
	for(var i = 0; i < result.length; i++) {
		this.results[i].push(result[i]);
	}
	this.refresh();
};
ResultsTable.prototype._editPlayerCallback = function(name, callback) {
	var result = prompt('Podaj nowe inicjały gracza. Wyczyść pole, by go usunąć.', name);
	if(result) {
		callback(result);
	}
};
ResultsTable.prototype._editResultCallback = function(value, callback) {
	var result = prompt('Podaj nową wartość:', value);
	if(result) {
		callback(result);
	}
};
ResultsTable.prototype.refresh = function() {
	this.save();
	
	while(this.tplayers.lastChild) {
		this.tplayers.removeChild(this.tplayers.lastChild);
	}
	for(var i = 0; i < this.players.length; i++) {
		this.tplayers.appendChild(this._createPlayerTh(this.players[i]));
	}
	
	while(this.tresults.lastChild) {
		this.tresults.removeChild(this.tresults.lastChild);
	}
	for(var i = 0; i < this.results.length; i++) {
		var td = document.createElement('th');
		td.innerText = this.results[i].reduce(
			function(a, b) { return (parseInt(a, 10) || 0)+(parseInt(b, 10) || 0); }, 0
		);
		this.tresults.appendChild(td);
	}
	
	while(this.tbody.lastChild) {
		this.tbody.removeChild(this.tbody.lastChild);
	}
	if(this.results.length > 0) {
		for(var i = 0; i < this.results[0].length; i++) {
			var tr = document.createElement('tr');
			
			for(var j = 0; j < this.results.length; j++) {
				var td = document.createElement('td');
				td.innerText = this.results[j][i];
				td.onclick = function(j, i, self) { return function() {
					self.editResultCallback(
						self.results[j][i],
						function (value) {
							self.results[j][i] = value;
							self.refresh();
						}
					);
				} }(j, i, this);
				tr.appendChild(td);
			}
			
			this.tbody.appendChild(tr);
		}
	}
};