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

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

function DoMapyVD(idVD)  {
	window.parent.frames["big"].location.href = "mapa_"+idVD+".htm";
}

function DoMereni(oznaceni)  {
	var file = "mereni_"+oznaceni+".htm";
	var winmer=window.open(file,'hodnoty','toolbar=0, location=0, directories=0, status=0, menubar=0, scrollbars=1, resizable=0, width=800, height=600, left=100, top=100');
	winmer.self.focus();
}

function DoMereniVD(oznaceni)  {
	var file = "mereni_"+oznaceni+".htm";
	var winmervd=window.open(file,'hodnotyVD','toolbar=0, location=0, directories=0, status=0, menubar=0, scrollbars=1, resizable=0, width=800, height=600, left=50, top=50');
	winmervd.self.focus();
}

function DoMereniHraz(oznaceni)  {
	var file = "mereni_"+oznaceni+".htm";
	var winmervd=window.open(file,'hodnotyhraz','toolbar=0, location=0, directories=0, status=0, menubar=0, scrollbars=1, resizable=0, width=800, height=600, left=150, top=150');
	winmervd.self.focus();
}

function ZmenaMereni(objekt) {
	var hodnota=objekt.options[objekt.selectedIndex].value;
	window.location.href = hodnota+".htm";
}

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;
}