<script type="text/javascript" src=" https://cdn.rawgit.com/igorescobar/jQuery-Mask-Plugin/master/src/jquery.mask.js"></script>

function() { // Easy creation of masks according to the validation regular expression
  // New validation function
  var validate = function(qid, input, length) {
    var v = function(l) {
      if (input.value.length == l) {
        $('#vmsg_'+qid+'_regex_validation').removeClass('error').addClass('good');
        $("#"+input.id).removeClass('error').addClass('good');
        return true;
      }
      else {
        $('#vmsg_'+qid+'_regex_validation').removeClass('good').addClass('error');
        $("#"+input.id).removeClass('good').addClass('error');
        return false;
      }
    }
 
    if (!isNaN(length)) { // We got a numeric length
      v(length);
    } else { // We got an array of allowed lengths
      for (var i = 0; i<length.length; i++) {
        if (v(length[i])) { break; }
      }
    }
  }
 
  // telefone and telefoneOptions come from https://igorescobar.github.io/jQuery-Mask-Plugin/
 
  var telefone = function (val) {
    return val.replace(/\D/g, '').length === 11 ? '(00) 00000-0000' : '(00) 0000-00009';
  }
 
  var telefoneOptions = {
    onKeyPress: function(val, e, field, options) {
      field.mask(telefone.apply({}, arguments), options);
    }
  }
 
  // Our mask-options-regex-length correpondences
  var masks = [
       ["00.000.000/0000-00", {}, "/^[0-9]{2}\\\\.[0-9]{3}\\\\.[0-9]{3}\\\\/[0-9]{4}-[0-9]{2}$/", 18], // CNPJ
       ["00000-000", {}, "/^[0-9]{5}-[0-9]{3}$/", 9], // CEP
       ["000.000.000-00", {}, "/^[0-9]{3}.[0-9]{3}.[0-9]{3}-[0-9]{2}$/", 14], // CPF
       [telefone, telefoneOptions, "/^\\\\([0-9]{2}\\\\) [0-9]{4,5}-[0-9]{4}$/", [14, 15]], // 8 or 9-digit Brazilian telephone numbers
       ];
 
  // Form pairs of [qid, regex] for later search 
  var scripts = $("script")
  var regexes = []
  for (var i=0; i<scripts.length; i++) {
 
    // We first try to get qid from the line "function LEMval????(sgqa){"
    var script = scripts[i].innerHTML;
    var currIndex = scripts[i].innerHTML.indexOf("function LEMval");
    while (currIndex >= 0) {
      script = script.substring(currIndex+15); // Get rid of "function LEMval"
      if (!isNaN(script.substring(0,1))) { // We found a qid after "function LEMval"
        var valqid = script.substring(0,script.indexOf("("));
 
        // Now we try to get the validation regex, which is delimited by double
        // quotes as in LEMregexMatch("/^[0-9]{2}-[0-9]{8,9}$/"
        var regex = script.substring(script.indexOf("LEMregexMatch(\"")+15);
        regex = regex.substring(0, regex.indexOf("\""));
 
        // If we find it, appendo to regexes list as a pair of [qid, regex]
        regexes.push([valqid, regex]);
      }
      currIndex = script.indexOf("function LEMval"); // Next...
    }
  }
 
  // Iterate through found questions and create masks
  for (var i=0; i<regexes.length; i++) {
    var qid = regexes[i][0];
    var input = $("#question"+qid+" input")[0];
    for (var ii=0; ii<masks.length; ii++) {
      if (masks[ii][2] == regexes[i][1]) {
        var length = masks[ii][3];
        $("#"+ input.id).mask(masks[ii][0], masks[ii][1], masks[ii][2]);
        // We now have to manipulate validation functions. We may have a delay on mask update
        window["LEMval"+qid] = function (a, b, c) {
          return function(sgqa) {
            setTimeout(validate(a, b, c), 500);
          }
        }(qid, input, length); // We must separate from the outer scope
        $("#"+ input.id).focusout(window["LEMval"+qid]);
      }
    }
  }
}