/*
 * jquery.watermark.js
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
 * NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
 * USE OR OTHER DEALINGS IN THE SOFTWARE.
 * 
 */
(function ($) {

	$.extend($, {
		clearwatermarks: function () {
			$("[wmwrap='true']").find("input,textarea").watermark({ remove: true });
		},
		addwatermarks: function () {
			$("[watermark]").each(function (num, el) {
				$(el).watermark($(el).attr("watermark"));
			});
		},
		watermark: function (o) {
			o.el = $(o.el);
			if (o.remove) {
				if (o.el.parent().attr("wmwrap") == 'true') {
					o.el.parent().replaceWith(o.el);
				}
			} else {
				if (o.el.parent().attr("wmwrap") != 'true') {
					o.el = o.el.wrap("<span wmwrap='true' style='position:relative;'/>");
					var l = $("<label/>");
					l.addClass("Watermark");

					if (o.html) { l.html(o.html); }
					if (o.cls) { l.addClass(o.cls); }
					if (o.css) { l.css(o.css); }

					l.css({
						position: "absolute",
						left: "2px",
						top: "0px",
						display: "inline",
						cursor: "text"
					});

					if (o.el.is("TEXTAREA")) {
						if ($.browser.msie) {
							l.css("width", o.el.width());
						}
						if ($.browser.mozilla || $.browser.safari) {
							l.css("top", "");
						}
					}

					if (!o.cls && !o.css) {
						l.css("color", "gray");
					}

					var focus = function () {
						l.css("color", "silver");
					};

					var blur = function () {
						if (!o.el.val()) {
							l.css("color", "gray");
							l.show();
						} else {
							l.hide();
						}
					};

					var change = function () {
						if (!o.el.val()) {
							l.css("color", "gray");
							l.show();
						} else {
							l.hide();
						}
					};

					var keydown = function (evt) {
						if (evt.keyCode != '8' && evt.keyCode != '16' && evt.keyCode != '17' && evt.keyCode != '18' && !o.el.val()) {
							l.hide();
						}
					};

					var keyup = function () {
						if (!o.el.val()) {
							l.css("color", "silver");
							l.show();
						}
					};

					var click = function () {
						o.el.focus();
					};

					if (o.inherit) {
						if (typeof o.inherit == "string") {
							l.css(o.inherit, o.el.css(o.inherit));
						} else {
							for (var x = 0; x < o.inherit.length; x++) {
								l.css(o.inherit[x], o.el.css(o.inherit[x]));
							}
						}
					}

					o.el.focus(focus).blur(blur).change(change).keydown(keydown).keyup(keyup);
					l.click(click);
					o.el.before(l);
					if (o.el.val()) { l.hide(); }
				}
			}
			return o.el;
		}
	});

	$.fn.watermark = function (o) {
		return this.each(function () {
			if (typeof (o) == "string") {
				try { o = eval("(" + o + ")"); } catch (ex) { o = { html: o }; }
			}
			o.el = this;
			return $.watermark(o);
		});
	};
})(jQuery);

jQuery(document).ready(function(){
	jQuery.addwatermarks();
});