// JavaScript Document


// menu - zmena tlacitek

	tl = new Array();
	tl[1] = "obrazky/tl_01_a.gif";
	tl[2] = "obrazky/tl_01_b.gif";
	tl[3] = "obrazky/tl_02_a.gif";
	tl[4] = "obrazky/tl_02_b.gif";
	tl[5] = "obrazky/tl_03_a.gif";
	tl[6] = "obrazky/tl_03_b.gif";
	tl[7] = "obrazky/tl_04_a.gif";
	tl[8] = "obrazky/tl_04_b.gif";
	tl[9] = "obrazky/tl_05_a.gif";
	tl[10] = "obrazky/tl_05_b.gif";
	tl[11] = "obrazky/tl_06_a.gif";
	tl[12] = "obrazky/tl_06_b.gif";
	tl[13] = "obrazky/tl_07_a.gif";
	tl[14] = "obrazky/tl_07_b.gif";
	tl[15] = "obrazky/tl_08_a.gif";
	tl[16] = "obrazky/tl_08_b.gif";
	tl[17] = "obrazky/tl_09_a.gif";
	tl[18] = "obrazky/tl_09_b.gif";

	img = new Array();
	for (i=1; i<19; i++)
	{
		img[i] = new Image();
		img[i].src = tl[i];
	}

	function zmena(cislo, nazev_obrazku)
		{ document[nazev_obrazku].src=img[cislo].src }

	function zmentext(cim)
		{ document.all.symbol.innerHTML = cim }

// menu - konec zmeny tlacitek


// zobrazeni a skryti obsahu v dokumentu

	function close_all() {
	document.getElementById('strana11').style.display='none'
	document.getElementById('strana12').style.display='none'
	document.getElementById('strana13').style.display='none'
	document.getElementById('strana14').style.display='none'
	};

	function nacteni() {
	document.getElementById('strana11').style.display='';
	};
	function rozbal(num) {
		close_all();
		if (num == 1) {document.getElementById('strana11').style.display=''}
		else
			if (num == 2) {document.getElementById('strana12').style.display=''}
			else
				if (num == 3) {document.getElementById('strana13').style.display=''}
				else
					if (num == 4) {document.getElementById('strana14').style.display=''}
	};

// zobrazeni a skryti obsahu v dokumentu