function inicializace() {
  if (document.getElementById("cnav-dd")) {
    nastavAuta();
  }
  nastavMenu();
}
function nastavMenu () {
  var nav = document.getElementById("nav");
  var topmenu = getElementsByClassName("menufirst");
  var posledni = topmenu.length - 1;
  var menicko = getElementsByClassName("menicko","",topmenu[posledni]);
  menicko[0].style.marginLeft="-93px";
  var topmenudiv = getElementsByClassName("topmenu","div",topmenu[posledni]);
  var polozkadiv = getElementsByClassName("polozka","div",topmenu[posledni]);
  var bprvni = menicko[0].getElementsByTagName("b");
  bprvni[0].style.backgroundImage="none";
  bprvni[0].style.marginLeft="1px";
  //menicko[0].style.textAlign="right";
  if(topmenu[posledni].addEventListener) {
    topmenu[posledni].addEventListener('mouseover',function (e) {topmenudiv[0].style.zIndex="501";polozkadiv[0].style.zIndex="500";},true);
    topmenu[posledni].addEventListener('mouseout',function (e) {topmenudiv[0].style.zIndex="";polozkadiv[0].style.zIndex="";},true);
  }
  else {
    topmenu[posledni].onmouseover=function (e) {topmenudiv[0].style.zIndex="501";polozkadiv[0].style.zIndex="500";};
    topmenu[posledni].onmouseout=function (e) {topmenudiv[0].style.zIndex="";polozkadiv[0].style.zIndex="";};
  }
  
}
function nastavAuta () {
  var navsr = document.getElementById("nav-sr");
  var cnavdd = document.getElementById("cnav-dd");
  var navsrpol = navsr.getElementsByTagName("li");
  var cnavddpol = cnavdd.getElementsByTagName("li");
  for (var i=0; i < (navsrpol.length-1); i++ ) {
    var navsri = navsrpol[i];
    var cnavddi = cnavddpol[i];
    navsri.cnavddi = cnavddpol[i];
    cnavddi.cnavddi = cnavddpol[i];
    if(navsri.addEventListener) {
      navsri.addEventListener('mouseover',function (e) {this.cnavddi.style.display="block";},true);
      navsri.addEventListener('mouseout',function (e) {this.cnavddi.style.display="none";},true);
    }
    else {
      navsri.onmouseover=function (e) {this.cnavddi.style.display="block";};
      navsri.onmouseout=function (e) {this.cnavddi.style.display="none";};
    }
    if(cnavddi.addEventListener) {
      cnavddi.addEventListener('mouseover',function (e) {this.cnavddi.style.display="block";},true);
      cnavddi.addEventListener('mouseout',function (e) {this.cnavddi.style.display="none";},true);
    }
    else {
      cnavddi.onmouseover=function (e) {this.cnavddi.style.display="block";};
      cnavddi.onmouseout=function (e) {this.cnavddi.style.display="none";};
    }
  }
}
function ukazHledani () {
  var sirka = document.documentElement.clientWidth;
  var pozice = (sirka - 770)/2 + 380;
  var pozicestr = pozice.toString();
  pozicestr = pozicestr+"px";
  var srch=document.getElementById("srch");
  srch.style.display = "block";
  srch.style.left = pozicestr;
}
function zavriHledani () {
  var srch=document.getElementById("srch");
  srch.style.display = "none";
}



/*
	Developed by Robert Nyman, http://www.robertnyman.com
	Code/licensing: http://code.google.com/p/getelementsbyclassname/
*/	
var getElementsByClassName = function (className, tag, elm){
	if (document.getElementsByClassName) {
		getElementsByClassName = function (className, tag, elm) {
			elm = elm || document;
			var elements = elm.getElementsByClassName(className),
				nodeName = (tag)? new RegExp("\\b" + tag + "\\b", "i") : null,
				returnElements = [],
				current;
			for(var i=0, il=elements.length; i<il; i+=1){
				current = elements[i];
				if(!nodeName || nodeName.test(current.nodeName)) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	else if (document.evaluate) {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = "",
				xhtmlNamespace = "http://www.w3.org/1999/xhtml",
				namespaceResolver = (document.documentElement.namespaceURI === xhtmlNamespace)? xhtmlNamespace : null,
				returnElements = [],
				elements,
				node;
			for(var j=0, jl=classes.length; j<jl; j+=1){
				classesToCheck += "[contains(concat(' ', @class, ' '), ' " + classes[j] + " ')]";
			}
			try	{
				elements = document.evaluate(".//" + tag + classesToCheck, elm, namespaceResolver, 0, null);
			}
			catch (e) {
				elements = document.evaluate(".//" + tag + classesToCheck, elm, null, 0, null);
			}
			while ((node = elements.iterateNext())) {
				returnElements.push(node);
			}
			return returnElements;
		};
	}
	else {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = [],
				elements = (tag === "*" && elm.all)? elm.all : elm.getElementsByTagName(tag),
				current,
				returnElements = [],
				match;
			for(var k=0, kl=classes.length; k<kl; k+=1){
				classesToCheck.push(new RegExp("(^|\\s)" + classes[k] + "(\\s|$)"));
			}
			for(var l=0, ll=elements.length; l<ll; l+=1){
				current = elements[l];
				match = false;
				for(var m=0, ml=classesToCheck.length; m<ml; m+=1){
					match = classesToCheck[m].test(current.className);
					if (!match) {
						break;
					}
				}
				if (match) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	return getElementsByClassName(className, tag, elm);
};