function classifiedAdsCheckResponse() {
  if (isClassifiedAdsNickname('classifiedadsResponse') && isClassifiedAdsEmail('classifiedadsResponse') && isClassifiedAdsContent('classifiedadsResponse'))
    return true;
  else
    return false;
}

function classifiedAdsCheckWrite() {
  if (isClassifiedAdsNickname('classifiedadsWrite') && isClassifiedAdsEmail('classifiedadsWrite') && isClassifiedAdsTitle('classifiedadsWrite') && isClassifiedAdsContent('classifiedadsWrite'))
    return true;
  else
    return false;
}

function isClassifiedAdsNickname(formName) {
	if (document.forms[formName].nickname.value == "") {
		alert ("");
		document.forms[formName].nickname.focus();
		return false;
	}
	return true;
}

function isClassifiedAdsTitle(formName) {
	if (document.forms[formName].title.value == "") {
		alert ("");
		document.forms[formName].title.focus();
		return false;
	}
	return true;
}

function isClassifiedAdsContent(formName) {
	if (document.forms[formName].content.value == "") {
		alert ("");
		document.forms[formName].content.focus();
		return false;
	}
	return true;
}

function isClassifiedAdsEmail(formName) {
	var emailString = document.forms[formName].email.value;
	var emailFilter = /^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
	if (document.forms[formName].email.value == "") {
		alert ("");
		document.forms[formName].email.focus();
		return false;
	}
	else if (!emailFilter.test(emailString)) {
		alert ("");
		document.forms[formName].email.focus();
		return false;
	}
	return true;
}