/*formular*/
function isEmpty(e) {
    return ((e == null) || (e.length == 0));
}
function isEmail(mail) {
    re = /^[_a-zA-Z0-9\.\-]+@[_a-zA-Z0-9\.\-]+\.[a-zA-Z]{2,7}$/;
    return mail.search(re) == 0;
}
/*tab-boxy*/
var dom = true;
if (!document.getElementById) dom = false;
if (!document.getElementById && document.all) {document.getElementById = document.all; dom = true;}
isIE = (document.all && !window.opera) ? true:false;
function objekt(what) {return document.getElementById(what);}

window.onload = init;

function init() {
	var hash = location.hash.substr(1);
	switchOff();
	if (hash.indexOf("tab") > -1)	{
		switchOn(hash, 1);
	}
	else {
		if (objekt("tab1") != null) {
			switchOn('tab1');
		}
	}
	for (i = 0; i < document.getElementsByTagName("a").length; i++) {
		if (document.getElementsByTagName("a")[i].className == "bluebox-off") {
			text = document.createTextNode("Skrýt");
			document.getElementsByTagName("a")[i].appendChild(text);
		}
	}
}
// zneviditelni vsechny divy s id obsahujici tabN, kde N je cislo, u vsech zalozek tabN zrusi tridu
function switchOff() {
	for (i = 1; i < document.getElementsByTagName("div").length + 1; i++) {
		if (objekt("tab" + i) != null) {
			objekt("tab" + i).style.display = "none";
			objekt("tab" + i + "link").className = "";
		}
		if (objekt("features" + i) != null) {
			objekt("features" + i).style.display = "none";
			objekt("features" + i + "link").style.display = "inline";
		}
	}
}

//zviditelni div s predanym id, aktivuje danou zalozku
function switchOn(allowed, reload) {
	switchOff();
	objekt(allowed).style.display = "block";
	objekt(allowed + "link").className = "active";
	if (reload) {
		document.location.href="#"+ allowed;
	}
	return false;
}

//zviditelni div s predanym id, deaktivuje dany odkaz
function featuresOn(allowed) {
	switchOff();
	objekt(allowed + "link").style.display = "none";
	objekt(allowed).style.display = "block";
	return false;
}

//zneviditelni div s predanym id, aktivuje dany odkaz
function featuresOff(hidden) {
	objekt(hidden).style.display = 'none';
	objekt(hidden + "link").style.display = 'inline';
	return false;
}

function addThousandSeparator(sValue) {
  var sRegExp = new RegExp('(-?[0-9]+)([0-9]{3})');
  while(sRegExp.test(sValue)) {
    sValue = sValue.replace(sRegExp, '$1 $2');
  }
  return sValue;
}

function getCheckedValue(radioObj) {
	if(!radioObj)
		return "";
	var radioLength = radioObj.length;
	if(radioLength == undefined)
		if(radioObj.checked)
			return radioObj.value;
		else
			return "";
	for(var i = 0; i < radioLength; i++) {
		if(radioObj[i].checked) {
			return radioObj[i].value;
		}
	}
	return "";
}