var fieldset = new Object();

fieldset.fieldset_lang = false;
fieldset.fieldset_keys = false;

function toggle (field) {
    if (fieldset[field] == false) {
	fieldset[field] = true;
	document.getElementById(field).style.display = 'block';
    } else {
	fieldset[field] = false;
	document.getElementById(field).style.display = 'none';
    }
}

function toggle_lang() {
    if (document.getElementById('search_lang_other').value != "") {
	document.getElementById('search_lang_hu').setAttribute("disabled", "disabled");
	document.getElementById('search_lang_en').setAttribute("disabled", "disabled");
	document.getElementById('search_lang_de').setAttribute("disabled", "disabled");
    } else {
	document.getElementById('search_lang_hu').removeAttribute("disabled");
	document.getElementById('search_lang_en').removeAttribute("disabled");
	document.getElementById('search_lang_de').removeAttribute("disabled");
    }
}