if(window.opera && document.createComment) opera = "yes"; else opera = 0;

function colOn(name) {
        var n = document.getElementById(name);
        n.style.background = '#667997';
   
}

function colOff(name) {
        var n = document.getElementById(name);
        n.style.background = '#bbbbbb';
   
}

function gotol(target) {
	    document.location.href=(target);
}

function otevri2(a,b,obr)
{
var marg = 15;
var asirka = screen.availWidth-20;
var avyska = screen.availHeight-30;
var scrol="no";
a = a+(2*marg);
b = b+(2*marg);
if ((a > asirka) && (b > avyska))
{a = asirka-16; b = avyska-16; scrol="yes";};
if ((a > asirka) && !(b > avyska))
{a = asirka-16; b+=19; scrol="yes";};
if (!(a > asirka) && (b > avyska))
{a+=15; b = avyska-16; scrol="yes";};
window.open("",""+obr+"","width="+a+",height="+b+",top=10,left=10,scrollbars="+scrol+",toolbar=no,location=no,status=no,menubar=no,resizable=yes");
}

function popImage(page)
 {
  w=150;
  h=150;
  l=50;
  t=50;
  wokno=window.open(page,'wokno','width='+w+',height='+h+',top='+t+',left='+l);
  wokno.focus();
 }
 
function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
} 
 
function checkit()
{ 
 v = readCookie('visited2007');
 if(!v) 
   {
    document.write('<img src=http://www.a4d.cz/counter/adrspach/impress.php border=0>');
    createCookie('visited2007','Yes',1);
   }
}


function showme(thisdiv)
{
   if(document.getElementById(thisdiv).style.display=='none')
   document.getElementById(thisdiv).style.display='block';
   else document.getElementById(thisdiv).style.display='none';
}

var onwork=false;

function get_info(thisdiv,total){
  thisdiv = 'id'+thisdiv;
  if(onwork) for(i=0;i<=total;i++) { document.getElementById('id'+i).style.display="none"; }
  else onwork = true;
  document.getElementById(thisdiv).style.display='block';
}


var imgopen = 0;

function showIPop(fotopath,nazev,autor){
  if(!imgopen)
   {
    if(opera) document.getElementById("popimg").style.visibility = 'visible'; 
    else document.getElementById("popimg").style.display = 'block'; 
    document.getElementById("foto_img").src='../fotogalerie/pictures/'+fotopath+'.jpg'; 
    document.getElementById("foto_nazev").innerHTML = nazev;
    if(autor) document.getElementById("foto_nazev").innerHTML = nazev+', '+autor;
    imgopen = 1;
   }
  else closeImg();
 }
 
function hideIPop(fotopath){
  if(opera)
    document.getElementById("popimg").style.visibility = 'hidden'; 
  else
    document.getElementById("popimg").style.display = 'none'; 
  imgopen = 0;
 }