function isEmailAddr(email){
	var result = false;
	var theStr = new String(email);
	var index = theStr.indexOf("@");
	
	if (index > 0){
		var pindex = theStr.indexOf(".",index);
		if ((pindex > index+1) && (theStr.length > pindex+1))
		result = true;
	}
	
	return result;
}

function validaEmail(formField,fieldLabel){
	var result = true;
	
	if ((formField.value.length < 3) || !isEmailAddr(formField.value))  {
		alert('' + fieldLabel + '');
		formField.focus();
		result = false;
	}
	
	return result;
}
/**
'O + fieldLabel + foi digitado de forma incorreta.'
*/