var agt=navigator.userAgent.toLowerCase();
var is_major = parseInt(navigator.appVersion);

var is_nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1) && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1) && (agt.indexOf('webtv')==-1));
var is_nav2 = (is_nav && (is_major == 2));
var is_nav3 = (is_nav && (is_major == 3));
var is_nav4 = (is_nav && (is_major == 4));
var is_nav4up = (is_nav && (is_major >= 4));
var is_navonly = (is_nav && ((agt.indexOf(";nav") != -1) || (agt.indexOf("; nav") != -1)) );
var is_nav5 = (is_nav && (is_major == 5));
var is_nav5up = (is_nav && (is_major >= 5));
var is_ie   = (agt.indexOf("msie") != -1);
var is_ie3  = (is_ie && (is_major < 4));
var is_ie4  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.0")==-1) );
var is_ie4up  = (is_ie  && (is_major >= 4));
var is_ie5  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.0")!=-1) );
var is_ie5up  = (is_ie  && !is_ie3 && !is_ie4);
var isIE4, isIE4PC, isNav4PC, isNav4, isNav3;

if (is_ie4 || is_ie4up || is_nav5 || is_nav5up) {
  isIE4 = true;
  if (navigator.userAgent.indexOf('Mac') == -1) {
    isIE4PC = true;
  }
} else if (is_nav4) {
  isNav4 = true;
  if (navigator.userAgent.indexOf('Mac') == -1) {
    isNav4PC = true;
  }
} else if  (is_nav) {
  isNav3 = true;
}

function nsReload() {
  if (innerWidth != orgW || innerHeight != orgH){
    location.reload()
  }
}

if (is_nav4) {
  var orgW = innerWidth;
  var orgH = innerHeight;
  onresize = nsReload
}

if (document.images) {
p ="../../images/buttons/"
 b0on = new Image();  b0on.src = p + "usihome1.gif";
b0off = new Image(); b0off.src = p + "usihome0.gif";
 b1on = new Image();  b1on.src = p + "usiarhi1.gif";
b1off = new Image(); b1off.src = p + "usiarhi0.gif";
 b2on = new Image();  b2on.src = p + "usiinfo1.gif";
b2off = new Image(); b2off.src = p + "usiinfo0.gif";
 b3on = new Image();  b3on.src = p + "usikont1.gif";
b3off = new Image(); b3off.src = p + "usikont0.gif";
 b4on = new Image();  b4on.src = p + "usiogla1.gif";
b4off = new Image(); b4off.src = p + "usiogla0.gif";
 b5on = new Image();  b5on.src = p + "usihelp1.gif";
b5off = new Image(); b5off.src = p + "usihelp0.gif";
 b6on = new Image();  b6on.src = p + "usiengl1.gif";
b6off = new Image(); b6off.src = p + "usiengl0.gif";
 opon = new Image();  opon.src = p + "lsiop1.gif";
opoff = new Image(); opoff.src = p + "lsiop0.gif";
 ngon = new Image();  ngon.src = p + "lsing1.gif";
ngoff = new Image(); ngoff.src = p + "lsing0.gif";
 oton = new Image();  oton.src = p + "lsiot1.gif";
otoff = new Image(); otoff.src = p + "lsiot0.gif";
 tfon = new Image();  tfon.src = p + "lsitf1.gif";
tfoff = new Image(); tfoff.src = p + "lsitf0.gif";
 koon = new Image();  koon.src = p + "lsiko1.gif";
kooff = new Image(); kooff.src = p + "lsiko0.gif";
 sdon = new Image();  sdon.src = p + "lsisd1.gif";
sdoff = new Image(); sdoff.src = p + "lsisd0.gif";
 skon = new Image();  skon.src = p + "lsisk1.gif";
skoff = new Image(); skoff.src = p + "lsisk0.gif";
}
function W(url) {
  window.open(url,'Kontakt', 'toolbar=no,location=no,scrollbars=yes,resizable=yes,width=504,height=500')
}

function Z(pic,w,h){
  skroleri="no"
  wekrana=screen.width
  hekrana=screen.height
  url="../../data/zoom.html";
  if (w > wekrana-200) { w=wekrana-200; h=h+16; skroleri="yes"}
  if (h > hekrana-200) {
  	h=hekrana-200;
        if (skroleri="no") { w=w+16; }
        skroleri="yes"
        }
  window.open(url,pic,'toolbar=no,location=no,scrollbars='+skroleri+',resizable=no,width='+w+',height='+h)
}

function ZW(pic,w,h){
  url="../../data/zoom.html";
  window.open(url,pic,'toolbar=no,location=no,scrollbars=yes,resizable=no,width='+w+',height='+h)
}

function S(url,w,h){
  window.open(url,'text','toolbar=no,location=no,scrollbars=yes,resizable=no,width='+w+',height='+h)
}