var ACTIVE = 1;


function showmenu(nr)
{
	if (parent.leftmenu.document.getElementById('menuholder' + nr)) parent.leftmenu.document.getElementById('menuholder' + nr).style.display = 'block';
}

/*
var CURRENT_SEC = 1;
var CURRENT_SUB = 1;
var TOTAL_PAGES = 1;
var PICSET = 9;
var LBOX_X = 20;
var LBOX_Y = 20;
var POSx = 0;
var POSy = 0;
var LASTx = 0;
var LASTy = 0;
var isMDown = false;
var Browser = navigator.appName;

var hln1 = new Array();
var txt1 = new Array();
var hln2 = new Array();
var txt2 = new Array();

hln1[0] = 'Nonsecte mincin henit';
txt1[0] = 'Nonsecte mincin henit in er augiam eum quat lamet am, sumsan hent duisciduis';
hln1[1] = 'Nos duipsuscing eugiam';
txt1[1] = 'Nos duipsuscing eugiam nibh exeraesequat autat alit atuerci te commod';
hln1[2] = 'Vero dolore volore';
txt1[2] = 'Mincill uptat, vero dolore volore tat iriusci blamcon sequat ero odoloborem';
hln1[3] = 'Dolore minis num quat';
txt1[3] = 'Blaore dolore minis num quat lamet aut ipissequis ex ex enis alis non vulput';
hln1[4] = 'Nulput at volor';
txt1[4] = 'Nulput at volor sisim dolore velestie vulput prat laorer iriure del ut digna';
hln1[5] = 'Sumsan hent duisciduis';
txt1[5] = 'Nonsecte mincin henit in er augiam eum quat lamet am, sumsan hent duisciduis';
hln1[6] = 'Dui euguer';
txt1[6] = 'Ad dit dui euguer ad et lut acilis exeraessenit utat';
hln1[7] = 'Mincill uptat';
txt1[7] = 'Mincill uptat, vero dolore volore tat iriusci blamcon sequat ero odoloborem';
hln1[8] = 'Duismodit utpatum';
txt1[8] = 'Duismodit utpatum zzriure min velendiam vel irit alis non vel ut aliquisl iliqui';
hln1[9] = 'Blaore dolore minis';
txt1[9] = 'Blaore dolore minis num quat lamet aut ipissequis ex ex enis alis non vulput';
hln1[10] = 'Magna faciliquat';
txt1[10] = 'To odolore magna faciliquat nisit nos nulputpatue dit, velendrerat ipit praesto';
hln1[11] = 'Aliquatisim incing euipit';
txt1[11] = 'Dip et aliquatisim incing euipit lamcore raessecte ea am atuercilis elit';
hln1[12] = 'Volor sisim dolore';
txt1[12] = 'Nulput at volor sisim dolore velestie vulput prat laorer iriure del ut digna';
hln1[13] = 'Euguer ad et lut';
txt1[13] = 'Ad dit dui euguer ad et lut acilis exeraessenit utat';
hln1[14] = 'Nonsecte mincin henit';
txt1[14] = 'Nonsecte mincin henit in er augiam eum quat lamet am, sumsan hent duisciduis';
hln1[15] = 'Nos duipsuscing eugiam';
txt1[15] = 'Nos duipsuscing eugiam nibh exeraesequat autat alit atuerci te commod';
hln1[16] = 'Vero dolore volore';
txt1[16] = 'Mincill uptat, vero dolore volore tat iriusci blamcon sequat ero odoloborem';
hln1[17] = 'Dolore minis num quat';
txt1[17] = 'Blaore dolore minis num quat lamet aut ipissequis ex ex enis alis non vulput';
hln1[18] = 'Nulput at volor';
txt1[18] = 'Nulput at volor sisim dolore velestie vulput prat laorer iriure del ut digna';
hln1[19] = 'Sumsan hent duisciduis';
txt1[19] = 'Nonsecte mincin henit in er augiam eum quat lamet am, sumsan hent duisciduis';
hln1[20] = 'Dui euguer';
txt1[20] = 'Ad dit dui euguer ad et lut acilis exeraessenit utat';
hln1[21] = 'Mincill uptat';
txt1[21] = 'Mincill uptat, vero dolore volore tat iriusci blamcon sequat ero odoloborem';
hln1[22] = 'Duismodit utpatum';
txt1[22] = 'Duismodit utpatum zzriure min velendiam vel irit alis non vel ut aliquisl iliqui';
hln1[23] = 'Blaore dolore minis';
txt1[23] = 'Blaore dolore minis num quat lamet aut ipissequis ex ex enis alis non vulput';
hln1[24] = 'Magna faciliquat';
txt1[24] = 'To odolore magna faciliquat nisit nos nulputpatue dit, velendrerat ipit praesto';
hln1[25] = 'Aliquatisim incing euipit';
txt1[25] = 'Dip et aliquatisim incing euipit lamcore raessecte ea am atuercilis elit';

hln2[0] = 'Duismodit utpatum';
txt2[0] = 'Duismodit utpatum zzriure min velendiam vel irit alis non vel ut aliquisl iliqui';
hln2[1] = 'Blaore dolore minis';
txt2[1] = 'Blaore dolore minis num quat lamet aut ipissequis ex ex enis alis non vulput';
hln2[2] = 'Magna faciliquat';
txt2[2] = 'To odolore magna faciliquat nisit nos nulputpatue dit, velendrerat ipit praesto';
hln2[3] = 'Aliquatisim incing euipit';
txt2[3] = 'Dip et aliquatisim incing euipit lamcore raessecte ea am atuercilis elit';
hln2[4] = 'Volor sisim dolore';
txt2[4] = 'Nulput at volor sisim dolore velestie vulput prat laorer iriure del ut digna';
hln2[5] = 'Euguer ad et lut';
txt2[5] = 'Ad dit dui euguer ad et lut acilis exeraessenit utat';
hln2[6] = 'Nonsecte mincin henit';
txt2[6] = 'Nonsecte mincin henit in er augiam eum quat lamet am, sumsan hent duisciduis';
hln2[7] = 'Nos duipsuscing eugiam';
txt2[7] = 'Nos duipsuscing eugiam nibh exeraesequat autat alit atuerci te commod';
hln2[8] = 'Vero dolore volore';
txt2[8] = 'Mincill uptat, vero dolore volore tat iriusci blamcon sequat ero odoloborem';
hln2[9] = 'Dolore minis num quat';
txt2[9] = 'Blaore dolore minis num quat lamet aut ipissequis ex ex enis alis non vulput';
hln2[10] = 'Nulput at volor';
txt2[10] = 'Nulput at volor sisim dolore velestie vulput prat laorer iriure del ut digna';
hln2[11] = 'Sumsan hent duisciduis';
txt2[11] = 'Nonsecte mincin henit in er augiam eum quat lamet am, sumsan hent duisciduis';
hln2[12] = 'Dui euguer';
txt2[12] = 'Ad dit dui euguer ad et lut acilis exeraessenit utat';
hln2[13] = 'Mincill uptat';
txt2[13] = 'Mincill uptat, vero dolore volore tat iriusci blamcon sequat ero odoloborem';

function setcurrentmenu(id)
{
	var menuid = 'menu_' + id;
	divmenu = document.getElementById(menuid);
	divmenu.style.background = "transparent url('obrazy/menu_dark.gif') left top repeat-x";
}

function hilite(id)
{
	var menuid = 'menu_' + id;
	divmenu = document.getElementById(menuid);
	divmenu.style.background = "transparent url('obrazy/menu_lite.gif') left top repeat-x";
	divmenu.style.cursor = 'pointer';
}

function darken(id)
{
	var menuid = 'menu_' + id;
	divmenu = document.getElementById(menuid);
	divmenu.style.background = "transparent url('obrazy/menu_base.gif') left top repeat-x";
	divmenu.style.cursor = 'auto';
}

function changeloc(id)
{
	document.location.href = id + '.html'; // zatim neexistuji nektere soubory
}

function closeover()
{
	var closebtn = document.getElementById('lbox_close');
	closebtn.style.background = "transparent url('obrazy/close_movr.gif') top left no-repeat";
	closebtn.style.cursor = 'pointer';
}

function closeout()
{
	var closebtn = document.getElementById('lbox_close');
	closebtn.style.background = "transparent url('obrazy/close_mout.gif') top left no-repeat";
	closebtn.style.cursor = 'auto';
}

function showsec(secnr,firstpos)
{
	var ind = 1;
	
	CURRENT_SEC = secnr;
	CURRENT_SUB = Math.floor(firstpos/PICSET) + 1;
	TOTAL_PAGES = Math.floor(eval('hln' + secnr).length/PICSET) + 1;
	
	document.getElementById('counter').innerHTML = CURRENT_SUB + '/' + TOTAL_PAGES;
	
	for (i = firstpos; i < firstpos + PICSET; i++) {
		ind = 1 + i - (CURRENT_SUB - 1) * PICSET;
		if (i < eval('hln' + secnr).length) {
			document.getElementById('foto' + ind).style.background = "transparent url('sec" + secnr + "/thumbs/th" + (i+1) + ".jpg') top left no-repeat";
			document.getElementById('pos' + ind).style.visibility = 'visible';
			document.getElementById('text' + ind).innerHTML = eval('hln' + secnr + '[' + i + ']');
		}
		else  {
			document.getElementById('pos' + ind).style.visibility = 'hidden';
		}
 	}
}

function litebutton(id)
{
	document.getElementById('btn_' + id).style.background = "transparent url('obrazy/rcbutton_a_" + id + ".gif') top left no-repeat";
	document.getElementById('btn_' + id).style.cursor = 'pointer';
}

function offbutton(id)
{
	document.getElementById('btn_' + id).style.background = "transparent url('obrazy/rcbutton_n_" + id + ".gif') top left no-repeat";
	document.getElementById('btn_' + id).style.cursor = 'auto';
}

function getfirstsub()
{
	showsec(CURRENT_SEC, 0);
}

function getprevsub()
{
	var fp = (CURRENT_SUB - 1) * PICSET - PICSET;
	if (fp < 0) return;
	showsec(CURRENT_SEC, fp);
}

function getnextsub()
{
	var fp = (CURRENT_SUB - 1) * PICSET + PICSET;
	if (CURRENT_SUB == TOTAL_PAGES) return;
	showsec(CURRENT_SEC, fp);
}

function getlastsub()
{
	var fp = (TOTAL_PAGES - 1) * PICSET;
	showsec(CURRENT_SEC, fp);
}

function initlbox() 
{
	var x;
	var y;
	if (window.innerHeight) {
	// NN4 a kompatibilni prohlizece
		x = window.innerWidth;
		y = window.innerHeight;
	}
	else if (document.documentElement && document.documentElement.clientHeight) {
	// MSIE6 v std. režimu - Opera a Mozilla již uspěly s window.innerHeight
		x = document.documentElement.clientWidth;
		y = document.documentElement.clientHeight;
	}
	else if (document.body && document.body.clientHeight) {
	// starší MSIE + MSIE6 v quirk režimu
		x = document.body.clientWidth;
		y = document.body.clientHeight;
	}
	else { 
		x = 500;
		y = 500;
	}
	LBOX_X = Math.floor(x/2) - 230;
	LBOX_Y = Math.floor(y/2) - 230;
}

function showlbox(nr)
{
	var ind = (CURRENT_SUB - 1)*9 + nr - 1;
	var lb = document.getElementById('lightbox');
	var deht = document.documentElement.scrollHeight;
	var dbht = document.body.scrollHeight;
	var ht = dbht;
	if (deht > dbht) ht = deht;

	document.getElementById('screen_shade').style.visibility = 'visible';
	document.getElementById('screen_shade').style.height = ht + 'px';
	if (navigator.appName.indexOf("Microsoft") != -1 && parseInt(navigator.appVersion) >=4 ) {
		// IE4+ do not support PNG alpha so display black GIF and set alpha opacity with filter (75%)
		document.getElementById('screen_shade').style.filter = 'alpha(opacity=75)';
	}
	document.getElementById('lbox_cover').style.visibility = 'visible';
	document.getElementById('lbox_pict').style.background = "transparent url('sec" + CURRENT_SEC + "/" + (ind + 1) + ".jpg') top left no-repeat";
	document.getElementById('lbox_text').innerHTML = eval('txt' + CURRENT_SEC + '[' + ind + ']');
	lb.style.visibility = 'visible';
	lb.style.position = 'absolute';
	lb.style.left = LBOX_X + 'px';
	lb.style.top = LBOX_Y + 'px';
}

function closelbox()
{
	closeout();
	document.getElementById('lightbox').style.visibility = 'hidden';
	document.getElementById('lbox_cover').style.visibility = 'hidden';
	document.getElementById('screen_shade').style.visibility = 'hidden';
	isMDown = false;
}

/// Drag lbox new
function mdown()
{
	LASTx = POSx;
	LASTy = POSy;
	isMDown = true;
	document.getElementById('lightbox').style.cursor = 'move';
 	return false;
}

function mup()
{
	isMDown = false;
	document.getElementById("lightbox").style.cursor = 'auto';
 	return false;
}

// Set Netscape up to run the "mmove" function whenever the mouse is moved. 
// For Internet Explorer and Netscape 6, you can capture the movement a little easier.
if (document.layers) {  // Netscape
     document.captureEvents(Event.MOUSEMOVE);
     document.onmousemove = mmove;
 } else if (document.all) {  // Internet Explorer
     document.onmousemove = mmove;
 } else if (document.getElementById) {  // Netcsape 6
     document.onmousemove = mmove;
 }

function mmove(e)
{
	if (!e) var e = window.event;
	if (e.pageX || e.pageY) {
		POSx = e.pageX;
		POSy = e.pageY;
	}
	else if (e.clientX || e.clientY) {
		POSx = e.clientX + document.body.scrollLeft;
		POSy = e.clientY + document.body.scrollTop;
	}
	// POSx and POSy now contain the mouse position relative to the document

	if (isMDown) {
		var lb = document.getElementById('lightbox');
		LBOX_X += POSx - LASTx; LASTx = POSx;
		LBOX_Y += POSy - LASTy; LASTy = POSy;
		lb.style.left = LBOX_X + 'px';
		lb.style.top = LBOX_Y + 'px';
		if (document.onselectstart) document.onselectstart = returnFalse;
	}
}

function returnFalse()
{
	return false;
}

/// konec obsluhy drag

// nastaveni pruhlednosti obj podle hodnotu value (0 - 100)
function setOpacity(obj,value)
{
	if (navigator.appName.indexOf("Netscape") != -1 && parseInt(navigator.appVersion) >= 5) {
		obj.style.MozOpacity=value/100;
	}
	else if (navigator.appName.indexOf("Microsoft") != -1 && parseInt(navigator.appVersion) >=4 ) {
		obj.style.filter = 'alpha(opacity=' + value + ')';
	}
}
*/