/************************************************************************************
** jQuery Placehold version 0.3
** (cc) Jason Garber (http://sixtwothree.org and http://www.viget.com)
** Licensed under the CC-GNU GPL (http://creativecommons.org/licenses/GPL/2.0/)
*************************************************************************************/

; (function ($) {
	$.fn.placehold = function (placeholderClassName) {
		var placeholderClassName = placeholderClassName || "placeholder",
			supported = $.fn.placehold.is_supported();

		function toggle() {
			for (i = 0; i < arguments.length; i++) {
				arguments[i].toggle();
			}
		}

		return supported ? this : this.each(function () {
			var $elem = $(this),
				placeholder_attr = $elem.attr("placeholder");

			if (placeholder_attr) {
				if (!$elem.val() || $elem.val() == placeholder_attr) {
					$elem.addClass(placeholderClassName).val(placeholder_attr);
				}

				if ($elem.attr("type") == "password") {
					var $pwd_shiv = $("<input />", {
						"class": $elem.attr("class") + " " + placeholderClassName,
						"value": placeholder_attr
					});

					$pwd_shiv.bind("focus.placehold", function () {
						toggle($elem, $pwd_shiv);
						$elem.focus();
					});

					$elem.bind("blur.placehold", function () {
						if (!$elem.val()) {
							toggle($elem, $pwd_shiv);
						}
					});

					$elem.hide().after($pwd_shiv);
				}

				$elem.bind({
					"focus.placehold": function () {
						if ($elem.val() == placeholder_attr) {
							$elem.removeClass(placeholderClassName).val("");
						}
					},
					"blur.placehold": function () {
						if (!$elem.val()) {
							$elem.addClass(placeholderClassName).val(placeholder_attr);
						}
					}
				});

				$elem.closest("form").bind("submit.placehold", function () {
					if ($elem.val() == placeholder_attr) {
						$elem.val("");
					}

					return true;
				});
			}
		});
	};

	$.fn.placehold.is_supported = function () {
		return "placeholder" in document.createElement("input");
	};
})(jQuery);