// PlaceHeld jQuery plugin by [Max Wheeler](max@makenosound.com)
//
// Copyright (c) 2010 Max Wheeler. Licensed under the [WTFPL](http://sam.zoy.org/wtfpl/)
// Dependencies: jQuery
//
// Changelog:
// * v1.0.0 (2010-04-21) Initial Version
// * v1.0.1 (2010-04-29) Minified using YUI compressor instead ofo JSMin
// * v1.0.2 (2010-05-10) Removed default text from form submission; moved placeholder support check outside for() loop
// * v1.0.3 (2010-05-14) Added check for "placheld" class before clearing default text on form submission

(function ($) {
    $.placeHeld = function (el, options) {
        var base = this;
        base.$el = $(el);
        base.el = el;
        base.$el.data("placeHeld", base);
        base.placeholderText = base.$el.attr("placeholder");

        base.init = function () {
            base.options = $.extend({}, $.placeHeld.defaultOptions, options);
            base.$el.bind('blur', base.holdPlace).bind('focus', base.releasePlace).trigger('blur');
            base.$el.parents('form').bind('submit', base.clearPlace);
        };
        // Hold with the default value attribute
        base.holdPlace = function () {
            var value = base.$el.val();
            if (!value) base.$el.val(base.placeholderText).addClass(base.options.className);
        };
        // Refill with the default value attribute
        base.releasePlace = function () {
            var value = base.$el.val();
            if (value == base.placeholderText) base.$el.val('').removeClass(base.options.className);
        };
        // Refill with the default value attribute
        base.clearPlace = function () {
            var value = base.$el.val();
            if (value == base.placeholderText && base.$el.hasClass(base.options.className)) base.$el.val('');
        };
        base.init();
    };

    $.placeHeld.defaultOptions = { className: "placeheld" };

    $.fn.placeHeld = function (options) {

        // Check for placeholder attribute support
        if (!!("placeholder" in $('<input>')[0])) return;

        return this.each(function () {
            (new $.placeHeld(this, options));
        });
    };
})(jQuery);