function domainname_correct (domain, tld) {
	error = "";
	dom_str = domain;
		
	var IDN_Zeichen_EU = "\u00E0\u00E1\u00E2\u00E3\u00E4\u00E5\u00E6\u00E7\u00E8\u00E9\u00EA\u00EB\u00EC\u00ED\u00EE\u00EF\u00F0\u00F1\u00F2\u00F3\u00F4\u00F5\u00F6\u00F8\u00F9\u00FA\u00FB\u00FC\u00FD\u00FE\u00FF\u0101\u0103\u0105\u0107\u0109\u010B\u010D\u010F\u0111\u0113\u0115\u0117\u0119\u011B\u011D\u011F\u0121\u0123\u0125\u0127\u0129\u012B\u012D\u012F\u0131\u0135\u0137\u013A\u013C\u013E\u0140\u0142\u0144\u0146\u0148\u0149\u014B\u014D\u014F\u0151\u0153\u0155\u0157\u0159\u015B\u015D\u0161\u0165\u0167\u0169\u016B\u016D\u016Fu0171\u0173\u0175\u0177\u017A\u017C\u017E\u0219\u021B\u0390\u03AC\u03AD\u03AE\u03AF\u03B0\u03B1\u03B2\u03B3\u03B4\u03B5\u03B6\u03B7\u03B8\u03B9\u03BA\u03BB\u03BC\u03BD\u03BE\u03BF\u03C0\u03C1\u03C2\u03C3\u03C4\u03C5\u03C6\u03C7\u03C8\u03C9\u03CA\u03CB\u03CC\u03CD\u03CE\u0430\u0431\u0432\u0433\u0434\u0435\u0436\u0437\u0438\u0439\u043A\u043B\u043C\u043D\u043E\u043F\u0440\u0441\u0442\u0443\u0444\u0445\u0446\u0447\u0448\u0449\u044A\u044B\u044C\u044D\u044E\u044F\u1F00\u1F01\u1F02\u1F03\u1F04\u1F05\u1F06\u1F07\u1F10\u1F11\u1F12\u1F13\u1F14\u1F15\u1F20\u1F21\u1F22\u1F23\u1F24\u1F25\u1F26\u1F27\u1F30\u1F31\u1F32\u1F33\u1F34\u1F35\u1F36\u1F37\u1F40\u1F41\u1F42\u1F43\u1F44\u1F45\u1F50\u1F51\u1F52\u1F53\u1F54\u1F55\u1F56\u1F57\u1F60\u1F61\u1F62\u1F63\u1F64\u1F65\u1F66\u1F67\u1F70\u1F71\u1F72\u1F73\u1F74\u1F75\u1F76\u1F77\u1F78\u1F79\u1F7A\u1F7B\u1F7C\u1F7D\u1F80\u1F81\u1F82\u1F83\u1F84\u1F85\u1F86\u1F87\u1F90\u1F91\u1F92\u1F93\u1F94\u1F95\u1F96\u1F97\u1FA0\u1FA1\u1FA2\u1FA3\u1FA4\u1FA5\u1FA6\u1FA7\u1FB0\u1FB1\u1FB2\u1FB3\u1FB4\u1FB6\u1FB7\u1FC2\u1FC3\u1FC4\u1FC6\u1FC7\u1FD0\u1FD1\u1FD2\u1FD3\u1FD6\u1FD7\u1FE0\u1FE1\u1FE2\u1FE3\u1FE4\u1FE5\u1FE6\u1FE7\u1FF2\u1FF3\u1FF4\u1FF6\u1FF7";	
		
	laenge = 2;
	sonderzeichen = IDN_Zeichen_EU;
	numbersonly = true;
	
	normalzeichen = "-a-zA-Z0-9";
	ok = dom_str.match("^(["+normalzeichen+sonderzeichen+"]{"+laenge+",})$");
	if (ok && numbersonly == false) {
		nurzahlen = dom_str.match("^([0-9]{"+laenge+",})$");
		if (nurzahlen) ok = false;
	}
	if (!ok) error = 'Bitte geben Sie einen gültigen Domainnamen ein!\n';

	return (error);
}


function checkOnly (domainname_id, tld_id, default_wert) {

	var domainname = document.getElementById (domainname_id);
	var tld_opts = document.getElementById (tld_id);	
	
	domain = domainname.value;
	
	if (domain==default_wert || domain=='') {
		alert ('Bitte geben Sie einen Domainamen ein!');
		domainname.focus();
		return (false);
	}
	
	selected = tld_opts.selectedIndex;
	tld = tld_opts[selected].text;
	
	error=domainname_correct (domain, tld);
	
	if (error != "") {
		alert (error);
		domainname.focus();
		return (false);
	}
	else return true;
}

function checkOnlySmall (default_wert) {
	return ( checkOnly ('domcheck_domain', 'domcheck_tld', default_wert) );
}

function checkDomainSubmitSmall(default_wert) {
	if (checkOnlySmall (default_wert)) document.getElementById('dcheck_form').submit();
}

function checkOnlyBreit (default_wert) {
	return ( checkOnly ('aba_domaincheck_domain_breit', 'aba_domaincheck_tld_breit', default_wert) );
}

function checkDomainSubmitBreit (default_wert) {
	if (checkOnlyBreit (default_wert)) document.getElementById('aba_domaincheck_breit').submit();
}

function refillInputField (obj, default_text) {
	if (!obj) return;
	if (obj.value == '') obj.value=default_text;
}

function clearInputField (obj, default_text) {
	if (!obj) return;
	if (obj.value == default_text) obj.value='';
}