//--------------------------------------------------------------------------
function Zmena(objekt)  {
		var hodnota=objekt.options[objekt.selectedIndex].value;
		if (!hodnota=="0") {
	    	window.parent.frames["big"].location.href = "mereni_"+hodnota+".htm";
		}
}

//--------------------------------------------------------------------------
function DoMereni(IDstanice)  {
	window.top.frames["big"].location.href = "mereni_"+IDstanice+".htm";
}

//--------------------------------------------------------------------------
function DoDetMapy(povodi)  {
	var cesta = "mapa_"+povodi+".htm";
	window.parent.frames["big"].location.href = cesta;
}

//--------------------------------------------------------------------------
function DoCelkMapy()  {
	var cesta = "mapa_vse.htm";
	window.parent.frames["big"].location.href = cesta;
}

//--------------------------------------------------------------------------
function DoRamcePrehledu()  {
	var cesta = "prehled.htm";
	window.parent.frames["big"].location.href = cesta;
}

//--------------------------------------------------------------------------
function DoRamcePrehleduO()  {
	var cesta = "prehledo.htm";
	window.parent.frames["big"].location.href = cesta;
}

//--------------------------------------------------------------------------
function DoPrehledu(povodi,razeni)  {
	var cestazavody = "prehled_zav_"+razeni+".htm?"+ povodi;
	var cestatabulka = "prehled_tab_"+povodi+"_"+razeni+".htm";
	window.parent.frames["frmPrehledZavody"].location.href = cestazavody;
	window.parent.frames["frmPrehledTabulka"].location.href = cestatabulka;
}

//--------------------------------------------------------------------------
function DoPrehledu2(povodi,razeni)  {
	var cestatabulka = "prehled_tab_"+povodi+"_"+razeni+".htm";
	window.parent.frames["frmPrehledTabulka"].location.href = cestatabulka;
}

//--------------------------------------------------------------------------
function DoPrehleduO(povodi,razeni)  {
	var cestatabulka = "prehledo_tab_"+povodi+"_"+razeni+".htm";
	window.parent.frames["frmPrehledTabulka"].location.href = cestatabulka;
}

//--------------------------------------------------------------------------
function DoHydroSituace()  {
	var cesta;

	cesta = "../presmerovani/hydrosituace.htm";
//	alert(cesta);

	var ohydsic = window.open(cesta,'hydsic','toolbar=1,scrollbars=1,location=1,resizable=1,width=600,height=350,status=1,left=50,top=50');
	ohydsic.self.focus();
}

//--------------------------------------------------------------------------
function DoVystraha()  {
	var cesta;

	cesta = "../presmerovani/vystraha.htm";
	//alert(cesta);

	var ovystraha = window.open(cesta,'vystraha','toolbar=1,scrollbars=1,location=1,resizable=1,width=600,height=350,status=1,left=50,top=50');
	ovystraha.self.focus();
}

//--------------------------------------------------------------------------
function DoSrazky()  {
	var cesta;

	cesta = "../presmerovani/srazky.htm";
	//alert(cesta);

	var oapl = window.open(cesta,'apl','toolbar=1,scrollbars=1,location=1,resizable=1,width=600,height=350,status=1,left=50,top=50');
	oapl .self.focus();
}

//--------------------------------------------------------------------------
function DoNadrze()  {
	var cesta;

	cesta = "../presmerovani/nadrze.htm";
	//alert(cesta);

	var oapl = window.open(cesta,'apl','toolbar=1,scrollbars=1,location=1,resizable=1,width=600,height=350,status=1,left=50,top=50');
	oapl .self.focus();
}
//--------------------------------------------------------------------------
function DoJakost()  {
	var cesta;

	cesta = "../presmerovani/jakost.htm";
	//alert(cesta);

	var oapl = window.open(cesta,'apl','toolbar=1,scrollbars=1,location=1,resizable=1,width=600,height=350,status=1,left=50,top=50');
	oapl .self.focus();
}

//--------------------------------------------------------------------------
function GetVer() {
	if (document.all) {
	  return "ie";
	}
	else if (document.layers) {
	  return "nn";
	}
	else if (document.getElementById) {
	  return "nn6";
	}
}
			
//--------------------------------------------------------------------------
function TabUkaz(nr) {
	var BrVer = GetVer();
	if (BrVer == "nn") layerein_ns(nr);
	if (BrVer == "nn6") layerein_ns6(nr);
	if (BrVer == "ie") layerein_ms(nr);
}

function layerein_ns(nr) {
	var ln = 'text'+nr;
	document.layers[ln].visibility = "show";
}

function layerein_ns6(nr) {
	var ln = 'text'+nr;
	document.getElementById(ln).style.visibility = "visible";
}

function layerein_ms(nr) {
	var ln = 'text'+nr;
	eval("document.all." + ln).style.visibility = "visible";
}

function TabSchovej(nr) {
	var BrVer = GetVer();
	if (BrVer == "nn") layeraus_ns(nr);
	if (BrVer == "nn6") layeraus_ns6(nr);
	if (BrVer == "ie") layeraus_ms(nr);
}

function layeraus_ns(nr) {
	var ln = 'text'+nr;
	document.layers[ln].visibility = "hidden";
}

function layeraus_ns6(nr) {
	var ln = 'text'+nr;
	document.getElementById(ln).style.visibility = "hidden";
}

function layeraus_ms(nr) {
	var ln = 'text'+nr;
	eval("document.all." + ln).style.visibility = "hidden";
}

//--------------------------------------------------------------------------
function jsZahlavi(net, ie)	{
	if ((navigator.appVersion.substring(0,3) >= net && navigator.appName == 'Netscape' && net != -1) || (navigator.appVersion.substring(0,3) >= ie && navigator.appName.substring(0,9) == 'Microsoft' && ie != -1))
	return true;
else return false;
}