function LayersInterface(map) {
	this.map = map; // map interface object
		
	this.elLrCyklo = null;
	this.elLrTurist = null;
	this.elLrSR = null;

	this._create = function() {
		this.elLrCyklo = document.getElementById('rb_vrstva_cyklo');
		this.elLrTurist = document.getElementById('rb_vrstva_turist');
		this.elLrSR = document.getElementById('cb_vrstva_relief');
		
		var mapType = this.map.getMapType();
		var sr = this.map.isOnRelief;
		
		this.elSelectMapType(mapType);
		
		if (sr) {
			this.elShowSR();
		} else {
			this.elHideSR();
		}
		
		this.attachEvents();
	}
	
	this.setMapTypeOnly = function(id) {
		if (!id) {
			this.map.activateLayerCyklo();
		} else {
			this.map.activateLayerTurist();
		}
	}

	this.elSelectMapType = function(id) {
		if (id == 1) {
			if (this.elLrTurist) {
				this.elLrTurist.checked = true;
			}
		} else {
			if (this.elLrCyklo) {
				this.elLrCyklo.checked = true;
			}
		}
	}
	
	this.elShowSR = function() {
		if (this.elLrSR) {
			this.elLrSR.checked = true;
		}
	}
	
	this.elHideSR = function() {
		if (this.elLrSR) {
			this.elLrSR.checked = false;
		}
	}
	
	this.onClickElLrCyklo = function() {
		this.setMapTypeOnly(0);
	}
	
	this.onClickElLrTurist = function() {
		this.setMapTypeOnly(1);
	}
	
	this.onClickElLrSR = function() {
		var sr = this.map.isOnRelief;
		
		if (sr) {
			this.map.deactivateLayerRelief();
		} else {
			this.map.activateLayerRelief();
		}
	}

	this.attachEvents = function() {
		if (this.elLrCyklo) {
			$(this.elLrCyklo).bind('click', jQuery.proxy(this.onClickElLrCyklo, this));
		}
		if (this.elLrTurist) {
			$(this.elLrTurist).bind('click', jQuery.proxy(this.onClickElLrTurist, this));
		}
		if (this.elLrSR) {
			$(this.elLrSR).bind('click', jQuery.proxy(this.onClickElLrSR, this));
		}
		//GEvent.addListener(this.map.gmap, "moveend", jQuery.proxy(this.onUpdateLayers, this));
	}
	
	this._create();
}