function oznaceni(field) {
	if (document.getElementById('vsechno').checked == true) {
		for (i = 0; i < field.length; i++) {
			field[i].checked =  false;}
		document.getElementById('vsechno').disabled = true;
	}
}

function oznacenivyr(field) {
	if (document.getElementById('allprod').checked == true) {
		for (i = 0; i < field.length; i++) {
			field[i].checked =  false;}
		document.getElementById('allprod').disabled = true;
	}
}


function zmena(field) {
	var vyber = "";
	for (i = 0; i < field.length; i++) {
		if (field[i].checked == true) {
			vyber = "false";
		}
		else {
			if (vyber != "false") {
				vyber = "true";
			}
		}
	}
	if (vyber == "true") {
		document.getElementById('vsechno').checked = true;
		document.getElementById('vsechno').disabled = true;
	}
	else {
		document.getElementById('vsechno').checked = false;
		document.getElementById('vsechno').disabled = false;
	}
}

function zmenavyr(field) {
	var vyber = "";
	for (i = 0; i < field.length; i++) {
		if (field[i].checked == true) {
			vyber = "false";
		}
		else {
			if (vyber != "false") {
				vyber = "true";
			}
		}
	}
	if (vyber == "true") {
		document.getElementById('allprod').checked = true;
		document.getElementById('allprod').disabled = true;
	}
	else {
		document.getElementById('allprod').checked = false;
		document.getElementById('allprod').disabled = false;
	}
}

function ot(p) {
  kat=eval("document.getElementById('ka" +p+ "')");
  pk=eval("document.getElementById('po" +p+ "')");
  if (null!=pk) {
     if (pk.style.display=='block') {
        pk.style.display='none';
     } else {
        pk.style.display='block';
     }
  }
}

function Podrobne()
{
	if (document.getElementById('podr').className == "invisible") 
	{ 
	document.getElementById('podr').className = ""	
	}
	else
	{ 
	document.getElementById('podr').className = "invisible"
	}
}


var actualPanelId = 'panel1';
var actualMenuTabId = 'tab1';

function showPanel(idnumber) {
document.getElementById(actualPanelId).style.display = 'none';
document.getElementById('panel'+idnumber).style.display = 'block';
actualPanelId = 'panel'+idnumber;
document.getElementById(actualMenuTabId).className = '';
document.getElementById('tab'+idnumber).className = 'thispage';
actualMenuTabId = 'tab'+idnumber;
}













function Odkryt(co)
{
	if (document.getElementById(co).className == "invisible") 
	{ 
	document.getElementById(co).className = ""	
	}
	else
	{ 
	document.getElementById(co).className = "invisible"
	}
}

function ZmenaTlacitka(){
if (document.getElementById('bonuscode').value == "") {
	document.getElementById('btn_bonus').disabled = true;	
	}
else
	{
	document.getElementById('btn_bonus').disabled = false;	
	}
}

function Souhlas() {
	if (document.getElementById('souhlas').checked==false) document.getElementById('ButtonSubmit').disabled = true;
	if (document.getElementById('souhlas').checked==true) document.getElementById('ButtonSubmit').disabled = false;
};