/**
 * jQuery.labelify - Display in-textbox hints
 * Stuart Langridge, http://www.kryogenix.org/
 * Released into the public domain
 * Date: 25th June 2008
 * @author Stuart Langridge
 * @version 1.3
 *
 *
 * Basic calling syntax: $("input").labelify();
 * Defaults to taking the in-field label from the field's title attribute
 *
 * You can also pass an options object with the following keys:
 *   text
 *     "title" to get the in-field label from the field's title attribute
 *      (this is the default)
 *     "label" to get the in-field label from the inner text of the field's label
 *      (note that the label must be attached to the field with for="fieldid")
 *     a function which takes one parameter, the input field, and returns
 *      whatever text it likes
 *
 *   labelledClass
 *     a class that will be applied to the input field when it contains the
 *      label and removed when it contains user input. Defaults to blank.
 *  
 */
jQuery.fn.labelify = function(settings) {
  settings = jQuery.extend({
    text: "title",
    labelledClass: ""
  }, settings);
  var lookups = {
    title: function(input) {
      return $(input).attr("title");
    },
    label: function(input) {
      return $("label[for=" + input.id +"]").text();
    }
  };
  var lookup;
 
  //GUSTAVO
  var isPassword = $(this).attr("type")=="password";
  var pwdInputSel = "#" + $(this).attr("id");
  var pwdTextSel = pwdInputSel + "-text";
  //GUSTAVO
  var jQuery_labellified_elements = $(this);
  return $(this).each(function() {
    if (typeof settings.text === "string") {
      lookup = lookups[settings.text]; // what if not there?
    } else {
      lookup = settings.text; // what if not a fn?
    };
    // bail if lookup isn't a function or if it returns undefined
    if (typeof lookup !== "function") { return; }
    var lookupval = lookup(this);
    if (!lookupval) { return; }
    // need to strip newlines because the browser strips them
    // if you set textbox.value to a string containing them    
    $(this).data("label",lookup(this).replace(/\n/g,''));
   
    //GUSTAVO
    if (isPassword)
    {
            $(this).after("<input type=\"text\" id=\"" + $(this).attr("id") + "-text\"/>");
            $(pwdTextSel).val($(this).data("label"));
            $(pwdTextSel).addClass(settings.labelledClass);
            $(pwdTextSel).focus(
                          function()
                          {
                                  $(this).hide();
                                  $(pwdInputSel).show();
                                  $(pwdInputSel).focus();
                          });
            $(pwdInputSel).hide();
    }
    //GUSTAVO
   
    $(this).focus(
            function()
            {
                    if (!isPassword) // GUSTAVO
                    {
                            if (this.value === $(this).data("label"))
                            {
                                    this.value = this.defaultValue;
                                    $(this).removeClass(settings.labelledClass);
                            }
                    }
            }).blur(
            function()
            {
                    // GUSTAVO
                    if (isPassword)
                    {
                            if ($(this).val()=="")
                        {
                                    $(this).hide();
                                    $(pwdTextSel).show();
                        }
                    }
                    else
                // GUSTAVO
                {
                            if (this.value === this.defaultValue)
                            {
                                    this.value = $(this).data("label");
                                    $(this).addClass(settings.labelledClass);
                            }
                }
            });
            
    var removeValuesOnExit =
            function()
            {
                    jQuery_labellified_elements.each(
                            function()
                            {
                                        if (!isPassword) // GUSTAVO
                                        {
                                                if (this.value === $(this).data("label"))
                                                {
                                                        this.value = this.defaultValue;
                                                        $(this).removeClass(settings.labelledClass);
                                                }
                                        }
                            });
            };
   
    $(this).parents("form").submit(removeValuesOnExit);
    $(window).unload(removeValuesOnExit);
   
    if (this.value !== this.defaultValue) {
      // user already started typing; don't overwrite their work!
      return;
    }
   
    // actually set the value
   
    if (!isPassword) // GUSTAVO
    {
            $(this).val($(this).data("label"));
            $(this).addClass(settings.labelledClass);
    }
  });
};