if (document.images) {
	//bg
	btn_01_bg_on = new Image();
	btn_01_bg_on.src = "images/btn_01_bg_on.gif";
	btn_01_bg_off = new Image();
	btn_01_bg_off.src = "images/btn_01_bg_off.gif";
	btn_02_bg_on = new Image();
	btn_02_bg_on.src = "images/btn_02_bg_on.gif";
	btn_02_bg_off = new Image();
	btn_02_bg_off.src = "images/btn_02_bg_off.gif";
	btn_03_bg_on = new Image();
	btn_03_bg_on.src = "images/btn_03_bg_on.gif";
	btn_03_bg_off = new Image();
	btn_03_bg_off.src = "images/btn_03_bg_off.gif";
	btn_04_bg_on = new Image();
	btn_04_bg_on.src = "images/btn_04_bg_on.gif";
	btn_04_bg_off = new Image();
	btn_04_bg_off.src = "images/btn_04_bg_off.gif";
	btn_05_bg_on = new Image();
	btn_05_bg_on.src = "images/btn_05_bg_on.gif";
	btn_05_bg_off = new Image();
	btn_05_bg_off.src = "images/btn_05_bg_off.gif";
	btn_06_bg_on = new Image();
	btn_06_bg_on.src = "images/btn_06_bg_on.gif";
	btn_06_bg_off = new Image();
	btn_06_bg_off.src = "images/btn_06_bg_off.gif";
	btn_07_bg_on = new Image();
	btn_07_bg_on.src = "images/btn_07_bg_on.gif";
	btn_07_bg_off = new Image();
	btn_07_bg_off.src = "images/btn_07_bg_off.gif";
	// ru
	btn_01_ru_on = new Image();
	btn_01_ru_on.src = "images/btn_01_ru_on.gif";
	btn_01_ru_off = new Image();
	btn_01_ru_off.src = "images/btn_01_ru_off.gif";
	btn_02_ru_on = new Image();
	btn_02_ru_on.src = "images/btn_02_ru_on.gif";
	btn_02_ru_off = new Image();
	btn_02_ru_off.src = "images/btn_02_ru_off.gif";
	btn_03_ru_on = new Image();
	btn_03_ru_on.src = "images/btn_03_ru_on.gif";
	btn_03_ru_off = new Image();
	btn_03_ru_off.src = "images/btn_03_ru_off.gif";
	btn_04_ru_on = new Image();
	btn_04_ru_on.src = "images/btn_04_ru_on.gif";
	btn_04_ru_off = new Image();
	btn_04_ru_off.src = "images/btn_04_ru_off.gif";
	btn_05_ru_on = new Image();
	btn_05_ru_on.src = "images/btn_05_ru_on.gif";
	btn_05_ru_off = new Image();
	btn_05_ru_off.src = "images/btn_05_ru_off.gif";
	btn_06_ru_on = new Image();
	btn_06_ru_on.src = "images/btn_06_ru_on.gif";
	btn_06_ru_off = new Image();
	btn_06_ru_off.src = "images/btn_06_ru_off.gif";
	btn_07_ru_on = new Image();
	btn_07_ru_on.src = "images/btn_07_ru_on.gif";
	btn_07_ru_off = new Image();
	btn_07_ru_off.src = "images/btn_07_ru_off.gif";
	// en
	btn_01_en_on = new Image();
	btn_01_en_on.src = "images/btn_01_en_on.gif";
	btn_01_en_off = new Image();
	btn_01_en_off.src = "images/btn_01_en_off.gif";
	btn_02_en_on = new Image();
	btn_02_en_on.src = "images/btn_02_en_on.gif";
	btn_02_en_off = new Image();
	btn_02_en_off.src = "images/btn_02_en_off.gif";
	btn_03_en_on = new Image();
	btn_03_en_on.src = "images/btn_03_en_on.gif";
	btn_03_en_off = new Image();
	btn_03_en_off.src = "images/btn_03_en_off.gif";
	btn_04_en_on = new Image();
	btn_04_en_on.src = "images/btn_04_en_on.gif";
	btn_04_en_off = new Image();
	btn_04_en_off.src = "images/btn_04_en_off.gif";
	btn_05_en_on = new Image();
	btn_05_en_on.src = "images/btn_05_en_on.gif";
	btn_05_en_off = new Image();
	btn_05_en_off.src = "images/btn_05_en_off.gif";
	btn_06_en_on = new Image();
	btn_06_en_on.src = "images/btn_06_en_on.gif";
	btn_06_en_off = new Image();
	btn_06_en_off.src = "images/btn_06_en_off.gif";
	btn_07_en_on = new Image();
	btn_07_en_on.src = "images/btn_07_en_on.gif";
	btn_07_en_off = new Image();
	btn_07_en_off.src = "images/btn_07_en_off.gif";
}

function turnon(imageName) {
	if (document.images) {
		document[imageName].src = eval(imageName + "_on.src");
	}
}

function turnoff(imageName) {
	if (document.images) {
		document[imageName].src = eval(imageName + "_off.src");
	}
}


var newwindow = "";

function popup_map(url) {
	if (newwindow.location && !newwindow.closed) {
		newwindow.location.href = url;
		newwindow.focus();
	} else {
		newwindow = window.open(url, 'BULGARIA', 'resizable=1');
	}
}

/* banners */

var bw = new browsers_checks();
var stop = false;
var bans_ix = 0;
var ie_crr = bw.ie ? 1 : 0;

function bans_generate() {
	for (w=0; w<=bans.length-1-ie_crr; w++) {
		document.write('<img src="images/'+bans[w][0]+'" width="570" height="170" border="0" alt="" id="bans-'+(w+1)+'"');
		if ((w+1) == 1) {
			document.write('style="display: block;"');
		} else {
			document.write('style="display: none;"');
		}
		document.write(' />');
	}
	bans_start();
}

function bans_start() {
	if (!stop) {
		bansInterval = window.setInterval("bans_rotate()", 10000); // 10 sec.
		stop = true;
	}
}

function bans_stop() {
	if (stop) {
		window.clearInterval(bansInterval);
		stop = false;
	}
}

function bans_change(nid) {
	bans_ix = nid-1;
	bans_rotate();
}

function bans_rotate(f) {
	if (f < 0) {
		if (bans_ix>1)
			bans_ix--;
		else
			bans_ix = 16;
	} else {
		if (bans_ix < 16)
			bans_ix++;
		else
			bans_ix = 1;
	}
	for (n=1; n<=bans.length-ie_crr; n++) {
		getObj("bans-"+n).style.display = "none";
		getObj("n"+n).className = "bans-pages-n";
	}
	getObj("bans-"+bans_ix).style.display = "block";
	getObj("n"+bans_ix).className = "bans-pages-c";
}

function browsers_checks() {
	this.n = navigator.userAgent;
	this.dom = document.getElementById ? 1 : 0;
	this.ie4 = document.all && !this.dom ? 1 : 0;
	this.ns4 = document.layers ? 1 : 0;
	this.ns = (this.n.indexOf("Netscape") >- 1) && !this.ns4;
	this.mz = (this.n.indexOf("Gecko") >- 1) && !this.ns;
	this.op = this.n.indexOf("Opera") >- 1;
	this.op8 = this.n.indexOf("Opera/8") >- 1 || (this.n.indexOf("MSIE") >- 1 && !this.ie4);
	this.ie = (this.n.indexOf("MSIE") >- 1) && !this.op && !this.ie4;
	this.bw = (this.ns || this.mz || this.ie || this.op8) ? 1 : 0;
	return this;
}

function getObj(id) {
	var obj = false;
	if (document.getElementById(id))
		obj = document.getElementById(id);
	return obj
}