function doSearch()
{
    var value = $RF("busca_home", "local_busca");
    var termo = $F("termo_busca");
    
    if (value == "seurest" && termo)
        window.open("http://seurestaurante.com.br/busca_rapida.php?nome_rest=" + termo + "&cidade=0&regiao=0&nacionalidade=0", "_self")
    
    if (value == "suarece" && termo)
        window.open("http://suareceita.com.br/receitas/busca?q=" + termo, "_self")
    
    if (!termo || !value)
        alert("Por favor escolha um local e digite o termo da busca.");
    return false;
}

function doCadastraNewsletter()
{
    var email = $F("cad_email");
    var suarec = $F("check_sua_rece");
    var seures = $F("check_seu_rest");
    
    if (!isValidEmail(email))
    {
        alert("Por favor forneça um email válido");
        return false;
    }
    
    $("span_cadastre").setStyle({display: "none"});
    $("span_cadastrando").setStyle({display: ""});
    $("label_cadastrando").innerHTML = "<strong>Cadastrando...</strong>";
    
    new Ajax.Request('cadastra_news.php', {
        method: 'post',
        onSuccess: function(transport){
            var response = transport.responseText || "error";
            
            if (response == "success")
                $("label_cadastrando").innerHTML = "<strong>Cadastrado com sucesso.</strong>";
            if (response.indexOf("erro") > -1)
                $("label_cadastrando").innerHTML = "<strong>Ocorreu um erro.</strong>";
            if (response == "invalid")
                $("label_cadastrando").innerHTML = "<strong>E-mail inválido.</strong>";
        },
        parameters: {seurest: seures, suarece: suarec, email: email, action: "include"}
    });
    
    return false;
}

function $RF(el, radioGroup) {
    if($(el).type && $(el).type.toLowerCase() == 'radio') {
        var radioGroup = $(el).name;
        var el = $(el).form;
    } else if ($(el).tagName.toLowerCase() != 'form') {
        return false;
    }
 
    var checked = $(el).getInputs('radio', radioGroup).find(
        function(re) {return re.checked;}
    );
    return (checked) ? $F(checked) : null;
}

/*
The following code is:
Copyright 2005, 4word systems
All rights reserved.

This software may not be reproduced or distributed in any form without the express 
written consent of 4word systems or it's designee.

Revision 1.1:  20050729 Added underscore to list of valid characters
*/

function isValidEmail(email, required) {
    if (required==undefined) {   // if not specified, assume it's required
        required=true;
    }
    if (email==null) {
        if (required) {
            return false;
        }
        return true;
    }
    if (email.length==0) {  
        if (required) {
            return false;
        }
        return true;
    }
    if (! allValidChars(email)) {  // check to make sure all characters are valid
        return false;
    }
    if (email.indexOf("@") < 1) { //  must contain @, and it must not be the first character
        return false;
    } else if (email.lastIndexOf(".") <= email.indexOf("@")) {  // last dot must be after the @
        return false;
    } else if (email.indexOf("@") == email.length) {  // @ must not be the last character
        return false;
    } else if (email.indexOf("..") >=0) { // two periods in a row is not valid
	return false;
    } else if (email.indexOf(".") == email.length) {  // . must not be the last character
	return false;
    }
    return true;
}

function allValidChars(email) {
  var parsed = true;
  var validchars = "abcdefghijklmnopqrstuvwxyz0123456789@.-_";
  for (var i=0; i < email.length; i++) {
    var letter = email.charAt(i).toLowerCase();
    if (validchars.indexOf(letter) != -1)
      continue;
    parsed = false;
    break;
  }
  return parsed;
}