(function($) {
  $.extend({
    placeholder : {
      settings : {
        focusClass: 'placeholderFocus',
        activeClass: 'placeholder',
        overrideSupport: false,
        preventRefreshIssues: true
      },
      debug : false,
      log : function(msg){
        if(!$.placeholder.debug) return;
        msg = "[Placeholder] " + msg;
        $.placeholder.hasFirebug ?
        console.log(msg) :
        $.placeholder.hasConsoleLog ?
          window.console.log(msg) :
          alert(msg);
      },
      hasFirebug : "console" in window && "firebug" in window.console,
      hasConsoleLog: "console" in window && "log" in window.console
    }

  });

    // check browser support for placeholder
    $.support.placeholder = 'placeholder' in document.createElement('input');

  // Replace the val function to never return placeholders
  $.fn.plVal = $.fn.val;
  $.fn.val = function(value) {
    $.placeholder.log('in val');
    if(this[0]) {
      $.placeholder.log('have found an element');
      var el = $(this[0]);
      if(value != undefined)
      {
        $.placeholder.log('in setter');
        var currentValue = el.plVal();
        var returnValue = $(this).plVal(value);
        if(el.hasClass($.placeholder.settings.activeClass) && currentValue == el.attr('placeholder')){
          el.removeClass($.placeholder.settings.activeClass);
        }
        return returnValue;
      }

      if(el.hasClass($.placeholder.settings.activeClass) && el.plVal() == el.attr('placeholder')) {
        $.placeholder.log('returning empty because it\'s a placeholder');
        return '';
      } else {
        $.placeholder.log('returning original val');
        return el.plVal();
      }
    }
    $.placeholder.log('returning undefined');
    return undefined;
  };

  // Clear placeholder values upon page reload
  $(window).bind('beforeunload.placeholder', function() {
    var els = $('input.' + $.placeholder.settings.activeClass);
    if(els.length > 0)
      els.val('').attr('autocomplete','off');
  });


    // plugin code
  $.fn.placeholder = function(opts) {
    opts = $.extend({},$.placeholder.settings, opts);

    // we don't have to do anything if the browser supports placeholder
    if(!opts.overrideSupport && $.support.placeholder)
        return this;
      
        return this.each(function() {
            var $el = $(this);

            // skip if we do not have the placeholder attribute
            if(!$el.is('[placeholder]'))
                return;

            // we cannot do password fields, but supported browsers can
            if($el.is(':password'))
                return;
      
      // Prevent values from being reapplied on refresh
      if(opts.preventRefreshIssues)
        $el.attr('autocomplete','off');

            $el.bind('focus.placeholder', function(){
                var $el = $(this);
                if(this.value == $el.attr('placeholder') && $el.hasClass(opts.activeClass))
                    $el.val('')
                       .removeClass(opts.activeClass)
                       .addClass(opts.focusClass);
            });
            $el.bind('blur.placeholder', function(){
                var $el = $(this);
        
        $el.removeClass(opts.focusClass);

                if(this.value == '')
                  $el.val($el.attr('placeholder'))
                     .addClass(opts.activeClass);
            });

            $el.triggerHandler('blur');
      
      // Prevent incorrect form values being posted
      $el.parents('form').submit(function(){
        $el.triggerHandler('focus.placeholder');
      });

        });
    };
})(jQuery);