function open_window(url)
{
	okno = window.open(url,"nazev","width=600,height=560,menubar=yes,toolbar=yes,scrollbars=yes,resizable=yes");
	wasOpen = false;
	if (typeof(okno) == "object"){
	wasOpen = true;
	}
	return wasOpen;
}

function confirm_delete()
{
	confirmation=window.confirm("Opravdu smazat poloľku objednávky?");
	if(confirmation)
	{
		return true;
	}
	else
	{
		return false;
	}
}