function nove_okno(adr)
	{ 
	window.open(adr,"",'top=0px left=0px width=780 height=550 resizable=yes menubar=yes toolbar=yes location=yes scrollbars=yes');
	}

function menu_otvor(menu)
	{
	menu.style.display="";
	}

function menu_zatvor(zoz)
	{
	zoz.style.display='none';
	}

function kontrolad2(form)
	{	
	if ((form.meno.value=="")||(form.tel.value=="")||(form.mail.value==""))
	{
	alert("Vyplòte, prosím, povinné údaje!");
	return false;
	}
	else
	return true;
	}