function ConfirmDelete(message) {
	return confirm('Opravdu chcete smazat ' + message + '?');
}

function ReloadPage() {
	location.reload(true);
	return false;
}

function Init() {
	if (document.forms[0] && document.forms[0]['Jmeno']) {
		document.forms[0].onsubmit = RezervaceKontrola;
	}
}

function ShowMenuItem(idx) {
	document.getElementById('menu_item_' + idx).src = 'style/menu/hover/menu_item_'+idx+'.png';
}
function HideMenuItem(idx) {
	document.getElementById('menu_item_' + idx).src = 'style/menu/menu_item_'+idx+'.png';
}

function RezervaceKontrola() {
	aform = document.forms[0];
	if (aform['Jmeno'].value == "" || aform['Email'].value == "" || aform['Tel'].value == ""
		|| (
			(aform['jednoluz'].value == "" || aform['jedno_od'].value == "" || aform['jedno_pocetnoci'].value == "")
			&& (aform['dvouluz'].value == "" || aform['dvou_od'].value == "" || aform['dvou_pocetnoci'].value == "")
			&& (aform['trojluz'].value == "" || aform['tri_od'].value == "" || aform['tri_pocetnoci'].value == "")
			&& (aform['ctyrluz'].value == "" || aform['ctyr_od'].value == "" || aform['ctyr_pocetnoci'].value == "")
		)
	) {
		alert("Vyplňte prosím všechny důležité kolonky! Fill all required gaps, please!");
		return false;
	}
	else {
		return true;
	}
}